A furniture store sells 200 dinning sets each year. It cost $20 to store one dinning set for year. To reorder, there is fixed processing cost of $40, plus a $10 shipping fee for each dinning set. a) Find the processing cost. b) Find the shipping cost. c) Find the storage cost. d) Find the Total inventory cost function. e) To minimize the inventory costs, how large is the lot size the store should maintain, and how many orders should be placed

Your sister turned 35 today, and she is planning to save $60,000 per year for retirement, with the first deposit to be made one year from today. she will invest in a mutual fund that's expected to provide a return of 7.5% per year. she plans to retire 30 years from today, when she turns 65, and she expects to live for 25 years after retirement, to age 90. under these assumptions, how much can she spend each year after she retires? her first withdrawal will be made at the end of her first retirement year.