A 500.-kilogram roller coaster starts from rest at the top of an 80.0-meter hill. What is its potential enegy halfway down the hill?

Ethan deposited $198 in an account that earns 2.5% annual interest. He wants to buy a sound system that sells for $210. Will he have enough money in the account at the end of one year? Explain.

Trina and her two sisters went out for pizza while the oldest sister was home from college. They each ate 2/3 of a pizza, and they started with 2 pizzas. How much of the pizza was left?

What is the equation of 14 + 6

A customer wants to purchase a $100 jacket. He has a 25% off coupon for one item and a 10% coupon for his entire purchase. Store policy allows both to be used. What is the total of the purchase?

32 quarts = $5.98 what is the nearest cent per ounce

4x10^5 scientific notation

Yolanda purchased a prepaid phone card for $25. Long distance calls cost 23 cents a minute using this card. Yolanda used her card only once to make a long distance call. If the remaining credit on her card is $22.

The junior class has 50 students. Fifteen students take only French, 5 students take only Latin, and 10 take both. If a student is chosen at random from the class, what is the probability that the student chosen takes French?

Jamie Is Sewing14 identical costumes for the school play. She Needs 210 Buttons to complete all of the costumes. How many buttons will she sew onto each costume?

Stacy owes $40 on her credit card. After she made a payment, her new balance was $10. What was the amount of her payment?