4. Sally wants to purchase a new sofa because she purchased a new home at the beach. Sally visited two stores and she narrowed down her choices to a red sofa and a blue sofa. Sally ovms pets so she considers the cost of insurance to insure each sofa. Sally compiled the following data and she realizes that the sales tax to purchase the sofa is 10% in her state. (E- points} Which sofa should Sally purchase? What costs are relevant in her decision? Why? The cost of the couch, the insurance and the tax are the relevant costs. The blue couch because it costs more to insure anything red. (I COULDN'T FIND ANY DATA NUMBERs}