true or false

A food chain is a simple model that shows the feeding relationships among the organisms in an ecosystem.

Select all expressions that are equivalent to 2( - 2x + 5) +x1. 3x + 102. - 3x + 103. 4x + 10 + x4. -4x + 10 + x A 400 gallon tank initially contains 300 gallons of water containing 0.8 lb of salt. Suppose water containing 0.6 lb of salt per gallon flows into the top of the tank at a rate of 2 gallons per minute. The water in the tank is kept well-mixed, and 7 gallons per minute are removed from the bottom of the tank. a. Write an initial value problem for S(t), the amount of salt in the tank at time t. Do not solve the equation!! b. Write an expression in terms of S for the amount of salt in the tank when the tank is one-quarter full. Show all your work on the paper you scan and submit. You do not need to type anything in the box below. What services can you expect from a personal trainer?Answer:As the name implies, personal trainers work with one person per session. Personal trainers start by helping their clients assess their fitness level and set goals. To work toward reaching these goals, the personal trainer demonstrates recommended exercises for the client and may suggest lifestyle changes such as a healthy diet. please help... On a market day , Aunt Mansah bought 100 oranges at 4 for 20p. On reaching home, she gave some to her husband and then sold the remaining at 5 for 40p. If she made a profit of 2.60, find the number of oranges given to her husband Calculate the value of angle B In which situation would you most likely address someone using the " tu " form?? A: Meeting a teacher on the first day of school. B: Meeting a fellow student on the first day of school. C: Meeting your friend's parent for the first time D: A & C E: None not this one, right?? An elephant lives in a grassland area.What are some biotic factors the elephant relies on for its survival?Choose all that apply:Plants the elephant eats.Other elephants that are part of the herd.Water the elephant drinks.The soil the elephant walks on. Solve the system of equations.y = x + 3y = x2 + 7x + 8A. (-1, -4) and (-5, -8)B. (-1, -2) and (-5, 2)C. (1, 4) and (5, 8)D. (-1, 2) and (-5, -2) How does the use of rhythm contribute to the ideas inthe passage?Read this passage from "The American Dream."One of the first things we notice in this dream is anamazing universalism. It does not say some men, but itsays all men. It does not say all white men, but it says allmen, which includes black men. It does not say allGentiles, but it says all men, which includes Jews. Itdoes not say all Protestants, but it says all men, whichincludes Catholics.o It supports key points by connecting them.o It states rational ideas to support a claim.It convinces people that the ideas are true.O It connects the ideas to people in a specific place.oh You are standing outside with two speakers. The temperature is 0 degrees C. The two speakers are playing sound of the same frequency: a pure sinusoidal sound of the same frequency at the same phase. The speakers are playing at different amplitudes. One speaker is 1.230 meters from you and one is 1.425 meters from you. You hear no sound. Which of the following is a possible frequency of the sound being played?a. 993 Hz b. 331 Hz c. 4965 Hz d. 1655 Hz e. 662 Hz Bella rolls 2 number cubes 60 times. How many times can she expect the sum of the numbers to be greater than 10? ok ik but i need help with this i think i got it tho -275=2x -50 HELP ME PLEASE!!!!!!! What are the 3 main weapons of a predator? Joseph's uncle wants to put shingles on the outside walls and solar panel the roof of his barn shown at the right. It costs $2.50 for each square meter of shingles, while solar panals cost $4.00 per square meter. How much will this project cost? Question 4 of 10Which of the following best describes how a cooperative building is owned?A. The government owns the building and provides low-rentapartments to the poor.B. The residents are shareholders in a corporation that owns thebuildingC. A landlord sells time-share blocks to the residents of the building,D. A group of partners own the building and rent each apartment tothe residents.SUBMIT The perimeter of a rectangular garden is 43.8 feet. Its length is 12.4 feet. What is its width? 100 POINTS MAKE THIS GOOD PLS I NEED THIS HELPThis journal entry will be completed in two parts. In this lesson, you will examine how different sentence types can add variety and interest to writing. Part of your learning will involve revising your own writing to improve sentence variety. Now, before continuing with the lesson, you will complete the first half of your entry. Write a short, four- to five-sentence paragraph about a topic of your choosing. Then, after you have completed this lesson, come back to the paragraph you wrote. Analyze your writing to identify areas where you could revise using different sentence types to add interest to your work. Revise the paragraph using the techniques you have learned. Your completed journal entry should have both your original and your revised paragraph. The frigate bird has a top recorded speed of 153 kilometers per hour. How would you state this speed in the appropriate customary unit? (1 km = 0.62 mi) Which two characteristics describe the most stable ecosystem on Earth?a. They are near the polesb they are near the equator.c. They have high biodiversityd they have few seed plants