if each side of a rectangle is increased by 100 % , by what % the area increases ?
if length is l and width is b then area = l * b now new l and b is 2 l and 2 b respectively . so new area is = 4 * l * b % increase = 300 % answer : d
multiply(subtract(power(multiply(divide(100, const_100), const_2), const_2), const_1), const_100)