Question

If a publisher charges $15 for the first copy of a book that is ordered and $12 for each additional copy, which of the following expressions represents the cost of y books?
F. 12y +3
G. 12y + 15
H. 15y - 3
J. 15y + 3
K. 15y + 12

btw the answers F but I have no idea why

Answer 1

The expression that represents the cost of y books is 12y + 3.

Given that,

• The charge for the first copy of the book is $15.
• For each extra copy, the charge is $12.
• Here we assume the number of books be y.

Now based on the above information, the expression should be

= 12y  + (15 - 12)

= 12y + 3

Therefore we can conclude that option F is correct.

Learn more: brainly.com/question/13910351