How do I find x in this problem?

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

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

Me find the value of x each figure.