pls help

What is the nominal annual rate of interest compounded quarterly at which $1276.00 will accumulate to $1901.11 in eight years and three months? GOOOD The nominal annual rate of interest is (Round the final answer to four decimal places as needed. Round all intermediate values to six decimal places as needed.) At what nominal annual rate of interest will money double itself in seven years, three months if compounded quarterly? The nominal annual rate of interest for money to double itself in seven 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.) A debt of $723.25 was to be repaid in 48 months. If $978.84 was repaid, what was the nominal rate compounded monthly that was charged? The nominal rate compounded monthly is%. (Round the final answer to four decimal places as needed. Round all intermediate values to six decimal places as needed.) What is the effective annual rate of interest if $1000.00 grows to $1500.00 in four years compounded semi-annually? 1%. 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. *** An amount of $1300.00 earns $500.00 interest in three years, four months. What is the effective annual rate if interest compounds semi-annually? 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.) Melissa made a deposit of $1079.00 into a bank account that earns interest at 9.6% compounded semi-annually. The deposit earns interest at that rate for five years. (a) Find the balance of the account at the end of the period. (b) How much interest is earned? (e) What is the effective rate of interest? (a) The balance at the end of the period is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) (b) The interest earned is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) (c) The effective rate of interest is %. (Round the final answer to four decimal places as needed. Round all intermediate values to six decimal places as needed.)