Ten years ago, Hailey invested $2,200 and locked in a 7 percent annual interest rate for 30 years (end 20 years from now). Aidan can make a 20-year investment today and lock in a 8 percent interest rate. How much money should he invest now in order to have the same amount of money in 20 years as Hailey?

You are thinking of making your mansion more energy efficient by replacing some of the light bulbs with compact fluorescent bulbs, and insulating part or all of your exterior walls. each compact fluorescent light bulb costs $4 and saves you an average of $2 per year in energy costs, and each square foot of wall insulation costs $1 and saves you an average of $0.20 per year in energy costs.† your mansion has 150 light fittings and 3000 sq ft of uninsulated exterior wall. to impress your friends, you would like to spend as much as possible, but save no more than $750 per year in energy costs (you are proud of your large utility bills). how many compact fluorescent light bulbs and how many square feet of insulation should you purchase? how much will you save in energy costs per year? (if an answer does not exist, enter dne.)

Suppose the number of equipment sales and service contracts that a store sold during the last six (6) months for treadmills and exercise bikes was as follows: treadmill exercise bike total sold 185 123 service contracts 67 55 the store can only sell a service contract on a new piece of equipment. of the 185 treadmills sold, 67 included a service contract and 118 did not.

Mystic bottling company bottles popular beverages in the bottling department. the beverages are produced by blending concentrate with water and sugar. the concentrate is purchased from a concentrate producer. the concentrate producer sets higher prices for the more popular concentrate flavors. a simplified bottling department cost of production report separating the cost of bottling the four flavors follows: