What's the relationship between the values of 4s in 44000

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

What is the surface area of the triangular prism?

In a grapefruit eating contest, sal ate 5 1/3 grapefruits in 2 minutes. if the world record is 7 1/6 grapefruits in 3 minutes, how many grapefruits would sal have had to eat in the next minute to tie the record