6. A used-book store sells paperback books for $1.30, with a $0.25 discount for each book more than 5 that a customer buys. A customer bought some books last week for $13.85. The store has a sale this week. The
price for each book is $1.15, with the same discount on each book over 5 purchased. How much would the
customer save if the same books were bought this week?
$12.05
b. $1.80
$0.05
d. $1.63
a.
c.