I need help with these simple interest questions

Use the future value formula to compute the maturity value of the following promissory note. Ignore any grace period. A 9-month, 7.9% note for $2095.00 is issued June 28, 1993. The maturity value is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)Find the present value, on the date indicated, of the following promissory note. Ignore any grace period. A non-interest-bearing note for $1326.00 issued April 23, 2013, for 308 days if money is worth 3.1%, on October 17, 2013. The value on October 17, 2013 is $ - (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)Determine the amount of interest on a 150-day note for $2402.00 with interest at 4.85% per annum. Ignore any grace period. The amount of interest is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)