Pb is a line segment on a number line. it has endpoints at -2 and 12. what is the coordinate of its midpoint

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

Mario is constructing a frame for 10 in. by 8 in. photo. he wants the frame to be the same with all the way around in the same area of the frame and photo to be 120 square inches what is the dimension of the frame?

Could someone me with this question i’ve been stuck on it for 20 minutes