Solve this equation for x.

8(x - 4) + 13 = 21

What is the measure of the smallest angle in the diagram? 15 29 32 45

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

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie