The sixth grade is charging $9 per car to wash cars. the fifth grade is charging $8.50 per car. suppose each grade washes 50 cars. how much more money will the sixth grade earn?

James is playing his favorite game at the arcade. after playing the game 33 times, he has 88 tokens remaining. he initially had 2020 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great