MATHEMATICSTHE NUMBER OF CC’S PER 175 POUNDS. YOU MUST

21. b.The surface area of the walls is found by multi-recognizing that the triangle is a 5-12-13 trian-plying: 4 walls times 120 square feet = 480gle, or by using the Pythagorean theorem.square feet. The area of the door and window toTherefore, 5 + 12 + 13 = 30.be subtracted is 12 + 21 square feet = 33 square