The government of Mexico declared blue sharks an endangered species. They put tags on 36 blue sharks and released them. Later, they corral 130
blue sharks; among those blue sharks, 20 were tagged. Find the best
estimate for the blue shark population?

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

If 20% of a number is 35, what is 50% of that number?

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?