The table shows the prices of biscuits at two shops. The biscuits are only sold in sets of 8 biscuits in Olivia's Bakery or sets of 9 biscuits in Kathy's Bakery.

Shop	Price of biscuits
Olivia's Bakery	8 for $14
Kathy's Bakery	9 for $15

1. Shannon has $26.60. She wants to buy 45 biscuits from Kathy's Bakery. How much more money does she need to buy the 45 biscuits?
2. Will has $83. He wants to buy the greatest possible number of biscuits with his money from one of the two shops. What is the greatest possible number of biscuits he can buy with his money?

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

Cost of 45 biscuits 
= 5 x 15
= $75

Amount that Shannon needs more to buy the 45 biscuits
= 75 - 26.60
= $48.40

(b)
Number of sets of 8 biscuits that Will could buy at Olivia's Bakery
= 83 ÷ 14
= 5 r 13

Number of biscuits that Will could buy at Olivia's Bakery
= 5 x 8
= 40 

Number of sets of 9 biscuits that Will could buy at Kathy's Bakery
= 83 ÷ 15
= 5 r 8

Number of biscuits that Will could buy at Kathy's Bakery
= 5 x 9
= 45 (More)

Greatest possible number of biscuits that Will can buy with his money = 45

Answer(s): (a) $48.40; (b) 45