I need the answer quick please.

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left