Answer:
Your friend is incorrect because if you divide 21 by 7 you will get 3 if you add 7 to 3 you get 10 therefore your friend is incorrect.
1 quarter= .25
200 × .25= 50
1 dime= .10
.10×15= 15
1 penny= .01
.01× 300= 3
Answer: 50+15+3= $68
Answer: 10
Step-by-step explanation:
