1.At what nominal annual rate of interest will money double itself in eight years, three months if compounded quarterly?

The nominal annual rate of interest for money to double itself in eight years, three months is _____% per annum compounded quarterly? (Round the final answer to four decimal places as needed. Round all intermediate values to six decimal places as needed.)

2. Payments on a six-year lease valued at $42,050 are to be made at the beginning of every year. If interest is 4.8% compounded annually, what is the size of the annual payments? The size of the annual payments is $____? (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)

3. An amount of $1000.00 earns $400.00 interest in two years, two months. What is the effective annual rate if interest compounds monthly? The effective annual rate of interest as a percent is_____%? (Round the final answer to four decimal places as needed. Round all intermediate values to six decimal places as needed.)