0.734862.. irrational or rational

Which functions shave a maximum and are transformed to the left and down of the parent function ,check all that apply f(x) = x2? p(x) =14 (x+7)2 + 1

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

The volume of the a sphere whoes diameter is 18 cm is cubic cm . if it's diameter were reduced by half, it's volume would be of its original volume