As soon as possible i hate math and want to get my class done

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

Nellie is analyzing a quadratic function f(x) and a linear function g(x). will they intersect? f(x) g(x) graph of the function f of x equals one half times x squared, plus 2 x g(x) 1 5 2 10 3 15

The diagram shows a cuboid abcdefgh abcd is a square with area 25cm². find the volume of the cuboid.