Mountain Tent Company orders one of its main components from three suppliers. The amount ordered from supplier A is 144,000/year, from supplier B is 86,400/year, and from supplier C is 12,000/year. During year 2002, Mountain Tent company used an independent EOQ policy for ordering from each of the three suppliers with a fixed ordering cost $800 plus a supplier-dependent shipping cost with $200/order with supplier A, $60/order with supplier B and $120/order with supplier C. The holding cost is h=$30/(unit, yr). Calculate the total annual operation cost (all ordering and inventory holding costs) based on the EOQ policy for year 2002. The company is thinking to consolidate the supply base by sourcing the total amount only from supplier B, how much the company may save annually in operating costs if the consolidation is taken?

John and daphne are saving for their daughter ellen's college education. ellen just turned 10 at (t = 0), and she will be entering college 8 years from now (at t = 8). college tuition and expenses at state u. are currently $14,500 a year, but they are expected to increase at a rate of 3.5% a year. ellen should graduate in 4 years--if she takes longer or wants to go to graduate school, she will be on her own. tuition and other costs will be due at the beginning of each school year (at t = 8, 9, 10, and 11).so far, john and daphne have accumulated $15,000 in their college savings account (at t = 0). their long-run financial plan is to add an additional $5,000 in each of the next 4 years (at t = 1, 2, 3, and 4). then they plan to make 3 equal annual contributions in each of the following years, t = 5, 6, and 7. they expect their investment account to earn 9%. how large must the annual payments at t = 5, 6, and 7 be to cover ellen's anticipated college costs? a. $1,965.21b. $2,068.64c. $2,177.51d. $2,292.12e. $2,412.76