How to find the correct unit of measurement? i am struggling with this. what is the difference between ft³, ft and ft²? example:

the length of a rectangular play area is 40 ft. the width of the play area is 20 ft.

which is the correct unit of measurement to use when figuring out how much fence is needed to surround the play area?

a.
ft³

b.
ft

c.
ft²

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

You love to play soccer! you make a shot at the net 8 times during a game! of those 8 attempts, you score twice. what percent of the time did you score?

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?