Answer:
(f-1)
Step-by-step explanation:
If you substitute a for (f-1) you get the expression...


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The statement can be represented as :

[ for t = 12 ]



Answered by : ❝ AǫᴜᴀWɪᴢ ❞
You're going to want to take the total, which is $353.00 and subtract the initial cost, which is $84.00, the number now should be $269. Using that total divide it by $68.00, there you should find your answer of about 4 hours. The precise answer is 3.99588235. But you would round that to 4 hours.
I would help but I'm not sure what you are asking for us to do