The controller of Cullumber Industries has collected the following monthly expense data for use in analyzing the cost behavior of maintenance costs. Month Total Maintenance Costs Total Machine Hours January $2,630 340 February 2,930 390 March 3,530 540 April 4,430 650 May 3,130 540 June 5,030 740 Determine the variable cost components using the high-low method. (Round answer to 2 decimal places e. g. 2.25.) Variable cost per machine hour $enter the variable cost per machine hour in dollars rounded to 2 decimal places eTextbook and Media Determine the fixed cost components using the high-low method. Total fixed costs $enter the total fixed costs in dollars eTextbook and Media

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.)

Bdj co. wants to issue new 22-year bonds for some much-needed expansion projects. the company currently has 9.2 percent coupon bonds on the market that sell for $1,132, make semiannual payments, have a $1,000 par value, and mature in 22 years. what coupon rate should the company set on its new bonds if it wants them to sell at par?

Why does the downward-sloping production possibilities curve imply that factors of production are scarce?