Answer:
The profit is $0.75 per muffin.
Explanation:
If P = .75m, then if m is 0, then P is zero (if the baker sells no muffins, they make no money)
If m = 1 (sold 1 muffin)
then P = .75, they made 75cents.
"for each muffin sold" means for 1 muffin.
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