John's dinner bill totaled $75. He left a 15% tip. How much money did John leave for a tip?

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect

On friday, there were x students at the baseball game. on monday, there were half as many students at the game as there were on friday. on wednesday, there were 32 fewer students at the game as there were on friday. which expression could represent the total number of tickets sold for all 3 games?