Elena bikes 20 minutes each day for exercise. Write an equation to describe the relationship between
her distance in miles, D, and her biking speed, in miles
per hour, when she bikes at a constant speed of 15
miles per hour for the first 5 minutes, then at 12 miles
per hour for the last 15 minutes.

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal

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?

Which of the following shows the length of the third side, in inches, of the triangle below