you need 1661.06 ft squared of carpet to completely cover the floor or a round room. what is the diameter of the room.

Anyone know? will mark brainliest if you're correct!

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)