Step-by-step explanation: so Cleo shipped 9 boxes and they all weigh the same and all together they weigh 432 lb (pounds), then he got two boxes back, so to find the weight of the two boxes we need to find out how much one box weighs. to do that we need to divide 432 lb by 9, and that gets us 48. now that's the weight of one box. to find the weight of two boxes then we need to add 48 to 48 and that gets us 96 lb. and that's the weight of two boxes.
