if x varies directly as x and given y=9 will when x=5 .find the equation connecting x and y. find the value of y when x=16 .find the value of x when y=6​

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