The table shows the prices of muffins at two shops. The muffins are only sold in sets of 7 muffins in Linda's Bakery or sets of 8 muffins in Tina's Bakery.

Shop	Price of muffins
Linda's Bakery	7 for $6
Tina's Bakery	8 for $7

1. Tiffany has $25.90. She wants to buy 32 muffins from Tina's Bakery. How much more money does she need to buy the 32 muffins?
2. Henry has $91. He wants to buy the greatest possible number of muffins with his money from one of the two shops. What is the greatest possible number of muffins he can buy with his money?

(a)
Number of sets of 8 muffins
= 32 ÷ 8
= 4

Cost of 32 muffins 
= 4 x 7
= $28

Amount that Tiffany needs more to buy the 32 muffins
= 28 - 25.90
= $2.10

(b)
Number of sets of 7 muffins that Henry could buy at Linda's Bakery
= 91 ÷ 6
= 15 r 1

Number of muffins that Henry could buy at Linda's Bakery
= 15 x 7
= 105 (More)

Number of sets of 8 muffins that Henry could buy at Tina's Bakery
= 91 ÷ 7
= 13 r 0

Number of muffins that Henry could buy at Tina's Bakery
= 13 x 8
= 104

Greatest possible number of muffins that Henry can buy with his money = 105

Answer(s): (a) $2.10; (b) 105