Hank's pickup can travel 80 miles on 5 gallons of gas. how many gallons will hank's pickup need to travel 64 miles?

These question are hard can you me with answers

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

The parabola opens: y=√x-4 (principal square root) up down right left