Answer:
$9.28625
Step-by-step explanation:
First, we need to find how much is 9.25% of $8.50 as follows
$8.50 x 9.25 /100 = 78.625/100 = $0.78625
Then, the final cost will be the initial cost of $8.50 plus the tac of $0.78625.
So, the final cost will be
$8.50 + $0.78625 = $9.28625.
So, the answer is $9.28625