SOMEONE HELP ME FIND THE MISSING SIDE- (I think it’s 21)

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Aparking garage charges $1.12 for the first hour and 0.50 for each additional hour. what is the maximum length of time tom can park in the garage if we wishes to play no more than $5.62

Every night nathan has to read for at least 25 minutes write and inequality that shows how long nathan can read each night