Bill spends $16 each time he travels the toll roads. He started the month with $256 In hls toll road account. The amount, A (in dollars), that he has left in the account aftert trips on the toll roads is glven by the following function. A(t) = 256- 16t Answer the following questions. (a) How much money does Bill have left in the account after 9 trips on the toll roads? (b) How many trips on the toll roads can he take until his account is empty? trips

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