The table shows the prices of wafers at two shops. The wafers are only sold in sets of 8 wafers in Tammy's Bakery or sets of 9 wafers in Joelle's Bakery.

Shop	Price of wafers
Tammy's Bakery	8 for $12
Joelle's Bakery	9 for $14

1. Abi has $22.10. She wants to buy 45 wafers from Joelle's Bakery. How much more money does she need to buy the 45 wafers?
2. Paul has $63. He wants to buy the greatest possible number of wafers with his money from one of the two shops. What is the greatest possible number of wafers he can buy with his money?

(a)
Number of sets of 9 wafers
= 45 ÷ 9
= 5

Cost of 45 wafers 
= 5 x 14
= $70

Amount that Abi needs more to buy the 45 wafers
= 70 - 22.10
= $47.90

(b)
Number of sets of 8 wafers that Paul could buy at Tammy's Bakery
= 63 ÷ 12
= 5 r 3

Number of wafers that Paul could buy at Tammy's Bakery
= 5 x 8
= 40 (More)

Number of sets of 9 wafers that Paul could buy at Joelle's Bakery
= 63 ÷ 14
= 4 r 7

Number of wafers that Paul could buy at Joelle's Bakery
= 4 x 9
= 36

Greatest possible number of wafers that Paul can buy with his money = 40

Answer(s): (a) $47.90; (b) 40