Read the excerpt below from The Call of the Wild and answer the question that follows. The toil of the traces seemed the supreme expression of their being, and all that they lived for and the only thing in which they took delight.
Which theme(s) does this quotation touch upon? Select all that apply.

the primitive vs. civilization
the value of work
the laws of man
the laws of nature

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.)

In a chapter 7 bankruptcy, a debtor:

What two things do you consider when evaluating the time value of money