Find the number of sides of the regular polygon when the measure of an exterior angle is given.
1. 30°
2. 10°

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

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?