Matthew gets on a Ferris wheel at the bottom of the wheel, which is 5 feet above the ground. After 40 seconds, he is at the top of the wheel, 65 feet high.

Step-by-step explanation:

Givens

So, to know the height of the wheel, we just need to subtract distances.

Therefore, the height of the wheel is 60 feet.

The image attached shows the problem.

56 44 2 4

step-by-step explanation:

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.