Students in a summer art class paint a rectangular mural. The shorter side of the mural measures 5 yards. The longer side measures 3 yards longer than the shorter side. How many square yards is the mural's area? (1 point)

The longer side of the mural is 5 + 3 = 8 yards.

The area of a rectangle is calculated by multiplying the length by the width, so the area of the mural is 5 yards * 8 yards = 40 square yards.

Therefore, the mural's area is 40 square yards.