Which of the following expressions is equal to 58?

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

Factor the monomial completely 42a3b3

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?