You invested $5,000 at the end of each quarter for 7 years in an investment fund. If the balance in the fund at the end of 7 years was $154,000, what was the nominal interest rate compounded quarterly?

Jared leased equipment worth $65,000 for 7 years. If the lease rate is 5.75% compounded semi-annually, calculate the size of the lease payment that is required to be made at the beginning of each half-year.