a) What is the present value of an income of $400.00 deposited at the end of each month, for 2 years in an account that earns 3% per semester. b) An investor acquires a loan for which he must pay for 5 years the sum of C$4,000,000.00 each four-month period agreed at 18% per year after 9 payments, he wishes to pay off the balance with a single payment, to make the full payment of the ninth payment. How much is the single payment to be made? c) An agricultural cooperative requests a loan with a term of 1.5 years for the productive sector, it is granted an annual rate of 1.5% compounded monthly, they agree to make payments of C$4,000.00 each month. What is the amount that can be lent to this group of farmers