Isaacs soccer coach is buying 18 new soccer kits for the team. store a sells soccers kits for $54.99. isaacs coach is getting a 15% discount for buying in bulk. a 6% tax will be applied to the discounted price. store b sells soccer kits for 42.50. an 8% handling fee will be applied to the price of each soccer kit plus a fee of $6.50 for shipping. what is the difference in cost between two stories for the purchase of the 18 soccer kits?