On her 14th birthday, a girl inherits $14,000 which is to be used for her college education. The money will be deposited in a trust fund that will pay her R dollars on her 18th, 19th, 20th, and 21st birthday. Find R if the money compounds 7% interest annually.

A loan with a quarterly payment of $1440 has an unpaid balance of $11000 after 36 quarters and an unpaid balance of $10000 after 37 quarters. If the interest rate is compounded quarterly, find the interest rate.