Choose a value for t greater than $12 and less than $13. Use one of the

expressions you wrote in part a to find Conor’s total cost, rounded to the
nearest penny. Show your work.
i chose 12.15

To find Conor's total cost, we can use the expression 17 + 0.85t.

Replacing t with 12.15, we have:
Total cost = 17 + 0.85(12.15)
= 17 + 10.3275
= 27.3275

Rounded to the nearest penny, Conor's total cost is $27.33.