Will someone help me with this please

Which product of prime polynomials is equivalent to 3x4 81x?3x(x 3)(x2 3x 9)3x(x 3)(x2 + 3x + 9)3x(x 3)(x 3)(x + 3)3x(x 3)(x + 3)(x + 3) A car covers 400m distance in 50 sec find it's speed? 25% of 275 is 68.85 help i need the answers by tomorrow Air in a closed cylinder is heated from 15C to 36C. If the initial pressure is 1000 torr, determine what is the final pressure? * Item 6Find the selling price.Cost to store: $50Markup: 10%The selling price is? GOOOOODBYEEEEEEEEEE IM GONNA DELETO, ENJOY THE POINTS Read the excerpt from The Common Sense of Bicycling: Bicycling for Ladies.The beginner usually exerts too much pressure on the pedals, and has to correct the falling tendency of the machine. This is very hard work, and stiff arms and shoulders and blistered hands may be often thus accounted for; they are the result of badly balanced pedaling. To be able to sit comfortably at work, and to feel that it is not so hard after all, is a great advance.What would most add to the completeness of these excerpt?an explanation of why sitting correctly is so importantan explanation of how to achieve the correct sitting positionan explanation of how to pedal while sitting correctlyan explanation of why sitting in the correct position is elegant help asapcould someone please explain how to solve/answer this?much appreciated QUESTION 34According to lecture, currently a greater percentage of Americans identify as Christian than in the past,TrueFalse What is 21/1 divided by 1/4 What season is represented in the northern hemisphere? *5 pointsCaptionless ImageA. SpringB. SummerC. FallD. Winter Pls help fast, I will give brainliest! Please help with d and explain Which quadratic function has a vertex point of (3,5) and passes through thepoint (-2,55)? A year on Earth is 365.26 days long. A year on Saturn lasts over 29 times longer than Earth. Which of the following best explains this difference between the two planets?Saturn is farther from the Sun than Earth.Saturn rotates on its axis faster than Earth.Saturn has greater gravitational force than Earth.Saturn revolves around the Sun faster than Earth. I need an answer in your own words please! How does having three branches of government make our lawmaking process more fair? Make sure to use the phrase checks and balances in your answer. Which expression is equivalent to 3 2/3 5 11/12 + 3 9/12? Step by step Calculate the bond energies that correspond to arrows A, B and C in the diagram: