2. Using a giant screw, a crew does 650 J of work to drill a hole into a rock.
The screw does 65 J of work. What is the efficiency of the screw? Show your
work. Hellpppp

is 250 000 miles from the earth to the moon" is a qualitativeObservationTRUEOr false Judy uses 12 tiles to make a mosaic. 8 of the tiles are blue. what fraction ,in simplest form, represents the tiles that are blue A snail travels at an average speed of 0.1 feet per hour for 15 minutes. How many feet will the snail travel? this killing me pls help Elmer is purchasing 2 4/5 pounds of candy that cost $1.85 per pound.If he pays with $10, how much will he get in change? HELP I WILL MARK BRAINIEST PLEASE HELP!!!A major reason the United States entered World War I was to...Select one:a. maintain freedom of the seasb. stop impressment of United States sailorsc. protect United States cities from foreign attacksd. counter a German invasion of Latin America Question 11A rectangle with a perimeter of 12 inches is enlarged by a scale factor of 3. What is the perimeter of the enlargedrectangle? 1. The nominal rate on Sandra's loan is 7.125%. If the interest is compounded monthly, what rate ofinterest is Sandra actually paying? (use the formula) PLEASE HELP DONT ANSWER IF YOU DO NOT KNOW (the numbers got cut out) Which investment would make you the most interest? Explain.A: $450 at 7% for 10 yearsB: $1,300 at 5% for 6 years An Xbox has a retail price of $350. Best Buy is offering a 15% discount on the system. How much will the Xbox cost after the discount? PLEASE HELP, Ill give brainliest to anyone who answers first!!!! A beverage manufacturer performs a taste-test and discovers that people like their fizzy beverages best when the radius of the bubbles is about 0.3 mm. According to the formula below, what would be the volume of one of these bubbles? r = root(3, (3V)/(4s)) What is the perimeter of JKL? Which evidence is most relevant to Nixon's claim that his spending plans are superior to Kennedy's?A. "I believe . . . that his program would lead to the stagnation of the motive power that we need in this country to get progress."B. "I know Senator Kennedy feels as deeply about these problems as I do, but our disagreement is not about the goals for America but only about the means to reach those goals."C. "Let us understand throughout this campaign that his motives and mine are sincere."D. "Now, when we look at these programs, might I suggest that in evaluating them we often have a tendency to say that the test of a program is how much you're spending."PLEASE HELP!! what should be done to make our society a discrimination free society Why have the buildings of Siena been preserved and not modernized?A.The buildings have historic value.B.Florence became a bustling city and Siena was left behind.c.The townspeople decided many centuries ago that tourism would one day bring in a great profit,e Write a system of linear inequalities represented by the graph.Inequality 1:Inequality 2: please helpi tried typing it but it said there was a bad word A right triangle is labeled with the hypotenuse 12m and an acute angle 23 degree. Which of the following equations could be used to find the side length of one of the legs of the triangle.A) sin. 23=12/xB)cos =12/xc)sin 23 =x/12D) tan 23=x/12