Hyperbola question looks easy hurry

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent