Answer:
10 donuts for $11.50
Explanation:
11.50 divided by 10 = 1.15
That means that for this deal, each donut costs $1.15
15 divided by 12 = 1.25
That means that each donut costs $1.25
$1.15 is less than $1.25, so the answer is 10 donuts for $11.50
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