1. Jimmy received a loan that he was t해 pay off in three installments:$500 in a year, $1,200 in 20months, and $1,500 in 2 years. What would be the amount of loan received if the annual simple interest rate is 9.5%? 2. Jill signed a loan contract that charges an annual simple interest of 8.5%. The payoff term required two payments: $5,500 in 9 months and $6,750 in 30months. But later Jill decided to pay it all off in only 1.5years. How much should Jill expect to pay? 3. A man has two loans; (1)$1,500 that is due 2 months from now with 7% annual simple interest, (2) $750 that is due 5 months from now. If he wants to mix them in a simple payment 10 months from now, how much would he pay given that the interest rate is 5%? 4. A man has a debt of $1,300 that is due 7 months from now. If he has the option to pay it either earlier, such as 3 months from now, or later, at the end of the year (12 months from now), how much would he pay in both cases given that the interest rate is 12%? 5. A small store owner has to pay his supplier three payments: $200 in 30days, $400 in 60days, and $600 in 90 days. If the interest is 8%, what single payment would discharge all three payments? What would be the equated date?