The owner of a large restaurant is considering how to obtain tablecloths for each of the 7 days that the restaurant is open each week. New tablecloths can be bought for $10 each, and after being used one day they can be cleaned at either Bud's 1- or Mac's 2-day service. Thus, for example, tablecloths used on Monday will be ready for use on Wednesday if sent to Bud or on Thursday if sent Bud charges $3 per tablecloth and Mac's slower service costs 1$ per tablecloth For the 7 days Monday through Sunday, the restaurant needs 110, 100, 160, 120 180, 200, and 120 tablecloths, respectively. After each week is over (late Sunda night) all tablecloths are sold for $2 each because they are unsuitable for anotherr week's use. Formulate a linear programming model to determine how to obtain the require supply of tablecloths at minimum cost.