Admission to a car show cost $5 for each ticket. after selling only 20 tickets, they decided to lower the price to $3 each. if they raise $217, how many tickets did they sell in all?

, this is my last question of my homework.

George is folding a piece of paper to make an origami figure. each time he folds the paper, the thickness of the paper is doubled. the paper starts out flat, with a thickness of 1 millimeter. a. write a list of six ordered pairs showing the output as the thickness of the paper when the input is the number of times it is folded. explain how you came up with your ordered pairs. b. is this relation a function? explain why or why not using the ordered pairs you came up with in part a.

What are “like terms”? why can we only add like terms?

Which value would be a solution for x in the inequality 47-4x< 7