Answer:

Explanation:
A store sells 12-packs of ballpoint pens for $1.09 each.
The store also sells composition books for $2.79 each.
Cindy buys 'm' packs of ballpoint pens and 'n' composition books.
So, the equation for this becomes:

And as Cindy gets a 5% discount, so she has to pay 95% of the regular price.
Then the expression that will represent Cindy’s bill is :
