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brilliants [131]
3 years ago
11

Paperback book cost $0.50

Mathematics
2 answers:
In-s [12.5K]3 years ago
4 0
9 paperbacks will be sold since 
 9 x 0.50 = 4.50
Because you bought 9 books you have to buy 3 more hardback books so:
3 x 0.75 = 2.25
2.25 + 4.50 = 6.75
Katen [24]3 years ago
3 0
9 paperback books were purchased
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