how much greater is the combined area in square inches of the front and back of a rectangular sheet of paper measuring 11 inches by 17 inches than that of a rectangular sheet of paper measuring 8.5 inches by 11 inches ?
"area of sheet a = 11 * 17 area of sheet b = 11 * 8.5 difference in area = 11 * 8.5 required % = ( 11 * 8.5 ) * 100 / ( 11 * 8.5 ) % = 100 % answer : c"
multiply(divide(subtract(multiply(rectangle_area(11, 17), const_2), multiply(rectangle_area(8.5, 11), const_2)), rectangle_area(11, 17)), const_100)