Please help me out, thank you :)

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

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

What term makes it inconsistent y=2x - 4