Question
PSLE
First 4 muffins: $1 each
Additional muffins: 90¢ each.

Ian has $11. What is the greatest number of muffins he can buy?
2 m

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PSLE
First 4 muffins: $1 each
Additional muffins: 90¢ each.

Ian has $11. What is the greatest number of muffins he can buy?