Answer:
$56.7
Explanation:
For this, you need to find out the tip and the tax.
45 x .06 = 2.7
45 x .2 = 9
After you find out that, add them together and that will be the total cost.
45 + 2.7 + 9 = 56.7
Feel free to let me know if you need more help. :)