What is the value of 7 to the 3rd power

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

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?