!PLEASE HELP! A square concrete foundation was prepared as a base for a large cylindrical gasoline tank. a. Express the radius of the tank as a function of the length (x) of the sides of the square.

b. Express the area (A) of the circular base of the tank as a function of the radius (r).

c. Find and interpret A(r(x))

What is the equation in point slope form of the line that passes through the point (-1, -3) and has a slope of 4? y-1=4(x-3) or y+3=4(x+1)

1. what is the phythaforean theorem? 2.what do we use it for? 1.what is the distance formula ? 2.what do we use it for?

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old