What multiplies into 12 and adds into 17

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

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25