I need help with these simple interest questions.

What principal will earn $41.38 interest from November 22, 2017, to September 18, 2018, at 9.75%? The required principal is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)Use the future value formula S = P(1 + it) to find the future value of $2732.00 at 7% p.a. for 306 days. The future value is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)Using the simple interest formula I: Prt, state the rate and time required for the formula in decimal format, given that the rate is 63 "ii; and the time is 61 years. The interest rate, r, is |:. (Round to six decimal places as needed.) The time, t, is years. (Round to six decimal places as needed.)