Use I = Prt for simple interest to find the indicated quantity.P = $13,500; t = 4 months; I = $517.50. Find r.

During the demographic transition, which of the following generally takes place?

If a current mortgage payment of $792 per month can be reduced to $578 per month by refinancing, how many months would you need to remain in the house to recoup refinancing charges of $3,784? (Round up to the nearest month.)

The demographic transition is:

Solve the problem.The number of books in a community college library increases according to the function where t is measured in years. How many books will the library have after 8 year(s)?

Solve the formula for the specified variable.F = C + 32 for C

Perform the operation, if possible.Let A = and B = . Find A + B.

You will receive $10,000 in 2 years.  If the appropriate interest rate is 10%, what is the present value of the $10,000?

At what annual rate would $500 grow to $1,948 in 12 years? (Note—Solve as a present valueproblem.)

Solve the problem. Round to the nearest cent as needed.The bacteria in a 11-liter container double every 2 minutes. After 50 minutes the container is full. How long did it take to fill a quarter of the container?