Answer:
3.62 inches
Explanation:
The minimum height to ride the bumper car is 39.37 inches.
Diego's cousin is 35.75 inches tall.
Hence, to find the number of inches he will need to grow, we will simply subtract his current height from the minimum height required.
That is:
39.37 - 35.75 = 3.62 inches
He will need to grow 3.62 inches before Diego can take him on the bumper car.