Given g(x)= (1/2)x+7 find g^(-1)(x)

Aphoto of a painting measured 13 x 17 inches the scale of the photo to the original painting is 1 inch to 3 inches. what is the size of this painting

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?