How do i get the numbers 1 2 3 4 and 5 to equal 1

Ineed with number 17 i don’t get it at alll

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

Which expression is rational? 6. , square root two, square root 14, square root 49