Small boxes contain dvds, and large boxes contain one gaming machine. three boxes of gaming machines and a box of dvds weight 48 pounds. three boxes of gaming machines and five boxes of dvds weight 72 pounds. how much does each box weigh?

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?