Four times a number, subtracted from eight, is twice the number. find the number.

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

What are the values of each variable in the diagram below?

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?