#### Answer

$m\leq108$

#### Work Step by Step

Find the maximum number of muffins that can be made with 18 cups of flour.
Let b represent the number of batches of muffins. Let m represent the number of muffins. There are 12 muffins in a batch of muffins.
$b=18\ cups\div\frac{2\ cups}{1\ batch}=9\ batches$
Find the number of muffins in 9 batches.
$m=9\ batches\times\frac{12\ muffins}{1\ batch}=108\ muffins$
With 18 cups of flour, you can make up to 108 muffins.