The following relations describe the supply and demand for posters.
where is the quantiA book store opens across the street from the university Book store (UBS). The new store carries the same textbook but offers a price 20 percent lower then UBS. If the cross-elasticity is estimated to be 1.5,and UBS does not respond to its competition,how much of its sales is it going to lose?ty and is the price of a poster,in dollars.