XYZ Construction Inc. wants to purchase a new pick-up truck. The price for the new truck is $45,752. The dealer allows XYZ to trade-in the old truck for $6,766. XYZ can payback the remaining balance through a 4 -year payment plan. Given the agreed interest rate is 3% : How much is the monthly payment? If XYZ can only pay $621 monthly, and the dealer does not accept trade-in, given 3% interest rate, how much of the new pick-up truck can XYZ afford? On second thoughts, XYZ decides to keep the old truck. They can choose to retrofit it or not. The retrofit will cost $2,692. After the retrofit, the annual fuel and maintenance cost will be $799 for the first year and increases by $152 each year. XYZ 's minimum attractive rate of return is 4%. If XYZ will get rid of the old truck in six years, what is the total present cost of retrofit? Without the retrofit, the annual fuel and maintenance cost will be $2,082 for the first year and increases at a rate of 7% each year. Given XYZ 's minimum attractive rate of return is still 4%. If XYZ will get rid of the old truck in six years, what is the total present cost of not retrofitting