The school wants to buy a new speaker system for the football stadium with the money they raised from the bake sale. they compared speaker system prices from two different distribution from school ‘r’us a system t, costs $230 less than three times the price of the same speaker system ,d, at the the warehouse the difference in price between the speaker system at school ‘r’us and the warehouse is $224 a. t-3d=-230 -t+d=224 b. 3t-d=-230 -t+d=224 c. t-3d=-230 t-d=224 d.3t-d=-230 t-d=224