George Grayson will retire in three years. He wants to open some type of small business operation that can be managed in the free time he has available from his regular occupation, but that can be closed easily when he retires. He is considering several investment alternatives, one of which is to open a laundromat. After careful study, Mr. Grayson has determined the following:

a.	Washers, dryers, and other equipment needed to open the laundromat would cost $155,000. In addition, $8,000 in working capital would be required to purchase an inventory of soap, bleaches, and related items and to provide change for change machines. (The soap, bleaches, and related items would be sold to customers at cost.) After three years, the working capital would be released for investment elsewhere.
b.	The laundromat would charge $1.55 per use for the washers and $0.80 per use for the dryers. Mr. Grayson expects the laundromat to gross $3,565 each week from the washers and $2,080 each week from the dryers.
c.	The only variable costs in the laundromat would be 7