What are the first 20 digits in tt(pi)

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

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.

True or false: dilations map angles of the same degrees