Answer:
Total cost: $24.15
Step-by-step explanation:
- divide 21 by 100 to find 1% (which is 0.21)
- multiply 0.21 by 15 to get 15% of 21 (which is 3.15)
- add 3.15 to 21 to get 24.15
The total is $24.15, shipping and handling included.
Hope this helps!!
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