The problem states that a baker put $m$ more muffins than scones on a platter. The baker put 12 scones on the platter. We need to choose the expression that represents the number of muffins the baker put on the platter.

1. Problem Description

The problem states that a baker put $m$ more muffins than scones on a platter. The baker put 12 scones on the platter. We need to choose the expression that represents the number of muffins the baker put on the platter.

2. Solution Steps

Let $M$ be the number of muffins.

Let $S$ be the number of scones.

We are given that $S = 12$.

We are also given that the number of muffins is $m$ more than the number of scones.

This means $M = S + m$.

Since $S = 12$, we can substitute 12 for $S$ in the equation $M = S + m$, so $M = 12 + m$.

The expression that shows how many muffins the baker put on the platter is $12 + m$.

3. Final Answer

$12 + m$