According to his GPS, it will take Lanny 1 hour to travel 40 miles. Which expression shows how to determine the speed in miles per hour?
40 miles ÷ 1 hour
1 hour ÷ 40 miles
1 mile ÷ 40 hours
40 hours ÷ 1 mile

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?