The table shows the prices of macarons at two shops. The macarons are only sold in sets of 4 macarons in Emma's Bakery or sets of 5 macarons in Gillian's Bakery.

Shop	Price of macarons
Emma's Bakery	4 for $13
Gillian's Bakery	5 for $14

1. Raeann has $24.80. She wants to buy 15 macarons from Gillian's Bakery. How much more money does she need to buy the 15 macarons?
2. Perry has $78. He wants to buy the greatest possible number of macarons with his money from one of the two shops. What is the greatest possible number of macarons he can buy with his money?

(a)
Number of sets of 5 macarons
= 15 ÷ 5
= 3

Cost of 15 macarons 
= 3 x 14
= $42

Amount that Raeann needs more to buy the 15 macarons
= 42 - 24.80
= $17.20

(b)
Number of sets of 4 macarons that Perry could buy at Emma's Bakery
= 78 ÷ 13
= 6 r 0

Number of macarons that Perry could buy at Emma's Bakery
= 6 x 4
= 24 

Number of sets of 5 macarons that Perry could buy at Gillian's Bakery
= 78 ÷ 14
= 5 r 8

Number of macarons that Perry could buy at Gillian's Bakery
= 5 x 5
= 25 (More)

Greatest possible number of macarons that Perry can buy with his money = 25

Answer(s): (a) $17.20; (b) 25