Frank deposited $734 in the bank and let it sit for nine months. how much interest will he earn if the bank gave him a 12% rate? what will be the new balance? (two answers are required)

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Asphere has a diameter of 10 in. what is the volume of the sphere?