Both questions please(provide equations used as well, thanks):

"A company borrowed $104424 from a bank at an interest rate of 10% compounded monthly. The loan will be repaid in 36 equal monthly installments over three years. What is the amount of this monthly installment (payment)?" Today, there is a negative cash flow of $2485. In year 1 , you have a positive cash flow of $2170. In year 2 , there is a positive cash flow of $2926. The annual interest rate is 3%, compounded weekly. What is the present value of this series of three cash flows