please solve 5.3 and 5.4 both

thanks!

Calculating Present Values 5.3 For each of the following, compute the PV: Present value Years Interest rate Future value 6 7% $ 13,827 43.852 9 15 18 725.380 23 18 590,710 Calculating Interest Rates 5.4 Solve for the unknown interest rate in each of the following: Present value Years Interest rate Future value $ 242 $ 307 + OC 896 410 51,700 18,750 16 162,181 483,500 27