Answer:
Your answer should be $29.40
Step-by-step explanation:
If you divide 21 by 5 you get 4.2, so each book costs $4.20.
4.2 x 7 = 29.4
Therefore, your total cost for 7 books will be $29.40
I hope this helps!
Um your picture wont show do it again
Answer:
$9.66 isb15% of $64.40
Step-by-step explanation:
64.40×15%