What is x+5 over x = 5 over 4

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

How can you tell when x and y are not directly proportional?

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?