While on a business trip to summerfield, vera treated her co-workers to a meal that cost
$12. vera knew that when the bill came, she would need to pay summerfield sales tax of
11.75% and would want to leave a 15% tip on the original $12. including tax and tip, how
much did vera's meal cost?

  $15.21

Step-by-step explanation:

The tax and tip percentages are both being figured on the original bill amount, so they can be added. The tax and tip together come to ...

  11.75% +15% = 26.75%

This is added to the original bill amount, so the final total will be ...

  $12 + $12×0.2675 = $12×1.2675 = $15.21

Vera's meal cost $15.21.