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

 If you invest $12,000 today at an interest rate of 10%, how much will you have in 10 years?

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.)