Alchem (L) is the price leader in the polyglue market. All 10 other manufactures (follower (F) firms) sell polyglue at the same price as Alchem. Alchem allows the other firms to sell as much as they wish at the established price and supplies the remainder of the demand itsel. Total demand for polyglue is given by the following function (QT=QL+QF): P=20,000-4QT Alchem's marginal cost function for manufacturing and selling polylue is MCL=5,000+5QL The aggregate marginal cost function for the other manufacturers of polyglue is ?MCF=2,000+4QF