the length of a rectangle is halved while its width is also halved . what is the % change in area ?
"the original area is l * w the new area is 0.5 l * 0.5 w = 0.25 * l * w = l * w - 0.75 * l * w the area decreased by 75 % . the answer is e ."
multiply(divide(subtract(multiply(const_3, divide(const_1, const_2)), const_1), const_1), const_100)