Help me with 55. Thank you.

Cost of Transporting Goods A trucking company transports Chicago and New York, a distance of 960 miles. The company's policy is to charge, for each pound $0.50 per mile for the first 100 miles. $0.40 per mile for the next 300 miles, $0.25 per mile for the next 400 miles, and no charge for the remaining 160 miles. Graph the relationship between the cost of transportation in dollars and mileage over the entire 960-mile route. Find the cost as a function of mileage for hauls between 100 and 400 miles from Chicago. Find the cost as a function of mileage for hauls between 400 and 800 miles from Chicago. Car Rental Costs An economy car rented in Florida from Enterprise weekly basis costs $185 per week. Extra days cost $37 day until the day rate exceeds the weekly rate, in which case the weekly rate applies. Also, any part of a day used counts as a full day. Find the cost C of renting an economy car as a function of the number x of days used, where 7 lessthanorequalto x lessthanorequalto 14. Graph this function. Mortgage Fees Fannie Mae charges a loan-level price A) adjustment (LLPA) on all mortgages, which represents a fee home buyers seeking a loan must pay. The rate paid depends on the credit score of the borrower, the amount borrowed, and the loan - to - value (LTV) ratio. The LTV ratio is the ratio of amount borrowed to appraised value of the home. For example, a home buyer who wishes to borrow $250,000 with a credit score of 730 and an LTV ratio of 80% will pay 0.5% (0.005) of $150.000.or $1250. The table shows the LLPA for various credit scores and an LTV ratio of 80%. Construct a function C = C(s). where C is the loan-level price adjustment (LLPA) and s is the credit score of an individual who wishes to borrow $300,000 with an 80% LTV ratio. What is the LLPA on a $300,000 loan with an 80% LTV ratio for a borrower whose credit score is 725? What is the LLPA on a $300,000 loan with an 80% LTV ratio for a borrower whose credit score is 670? Minimum Payments- for Credit Cards Holders of credit cards issued by banks, department stores, oil companies and so on receive bills each month that state minimum amounts that must be paid by a certain due date. The minimum due depends on the total amount owed One such credit card