b. 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.
Let's assume the value of t is $12.50.
Using the expression $10 + 0.5t, we can substitute the value of t into the expression:
Total Cost = $10 + 0.5($12.50)
= $10 + $6.25
= $16.25
Therefore, Conor's total cost, rounded to the nearest penny, is $16.25.