For the first question, the net of a rectangular prism will consist of 6 rectangles - top, bottom, front, back, left side, and right side.
For the second question, a net of the rectangular prism with dimensions 7 1/2 in. x 4 in. x 2 1/2 in. will consist of 5 rectangles - one for the top, one for the bottom, one for the front, one for the back, and one for the side.
To calculate the surface area of the air conditioner, we need to calculate the surface area of each face of the rectangular prism individually and then add them together.
Surface area of front and back faces = length x height = 23’’ x 17’’ + 23’’ x 17’’ = 782 square inches
Surface area of top and bottom faces = length x width = 23’’ x 25’’ + 23’’ x 25’’ = 1150 square inches
Surface area of left and right side faces = height x width = 17’’ x 25’’ + 17’’ x 25’’ = 850 square inches
Total surface area = 782 + 1150 + 850 = 2782 square inches.
Therefore, the surface area of the air conditioner is 2782 square inches.