Aldo spends $14 each time he travels the toll roads. He started the month with $224 in his toll road account. The amount, A (in dollars), that he has left in the account after trips on the toll roads is given by the following function.
A (t) = 224 - 14
Answer the following questions.
(a) How much money does Aldo have left in the account after 11 trips on the toll
roads?
(b) How many trips on the toll roads can he take until his account is empty?
trips

Pare a.) $70 is what he would have left. Since each trip is $14 you would multiply that by the amount of times he went which was 11. 14x11 is $154. But you need what he has left so you take his total amount $224-$154 and get $70.

Part b.) 16 times. He has $224 total. You want to find out how many times he can go on the tool roads. We know the toll roads cost $14 each time. So you do $224/14 and get an even amount of 16. He would be able to use it 16 times before he have no money left.