Suppose that roots' marginal cost of a jacket is a constant $100.00 and the total fixed cost at one of its stores is $1 comma 000 a day. this store sells 15 jackets a day, which is its profit-maximizing number of jackets. then the stores nearby start to advertise their jackets. the roots store now spends $2 comma 000 a day advertising its jackets, and its profit-maximizing number of jackets sold jumps to 55 a day. what is this store's average total cost of a jacket sold before the advertising begins and after the advertising begins. > > > answer to 2 decimal places. can you say what happens to the price of a roots jacket, roots' markup, and roots' economy?