Liam is setting up folding chairs for a meeting. If he arranges the chairs in 9 rows of the same length, he has 7 chairs left over. If he arranges the chairs in 7 rows of that same length, he has 15 left over. How many chairs does Liam have?

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?