Please help its on edmentum! ive been stuck forever

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?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.