The owner of a small store buys coats for 50.00$ each. a .she sells the coats for 90.00 each. what percent of the purchase price is the selling price? b. the owner increases the sale price the same percent that you found in part a when she buys jackets for $35 and sells them. how many jackets must the owner buy for the total jacket sales to be at least $250? explain your answer.