Claire wants to make 2 cakes for her mother. Two packages of flour are required for making a cake. If 1 package of flour is $3, how much does she pay for the flour that is enough to make 2 cakes? Let's think first. Chain of thought:
She needs 2 * 2 = 4 packages of flour for 2 cakes. 4 packages of flour cost 4 * $3 = $12.
Therefore, the answer is 12.