solve all the points

SUBJECT: Financial Mathematics 1) Solve, Step by Step a) A person wants to buy a car that has a price of $ 54,000,000 through a loan. If the financing company offers the following conditions: loan of 90% of the total value in equal monthly installments for 5 years and an interest rate of 60%, with monthly capitalization, what will be the value of the monthly installment? b) The lease of an office sets monthly payments of $ 4,000,000 at the beginning of each month, for 60 months. If an interest of 2.5% effective monthly is assumed; What will be the single payment at the beginning of the contract that covers the entire lease? c) $ 150,000,000 is owed, which will be settled in 60 equal payments due, considering a rate of 12%. Annual cash, it is requested to determine the value of each installment