Answer:
$22.68
Explanation:
21×.08= 1.68
21+1.68=22.68
Total cost =$22.68
22.68
The first step is to find the amount of tax
tax = original cost * tax rate
= 21 * 8%
= 21 * .08
=1.68
Then we add the tax to the original cost to find the total cost
total cost = original cost + tax
= 21 + 1.68
=22.68
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