Consider the question. At Penny’s bakery, her famous blueberry cheesecakes are $7 a slice. Each cheesecake pie is cut into 6 thick slices. If she sells 7 cheesecake pies, how much money does she make?
 If the answer is '294'; explain the reasoning:
There are a total of 7 x 6 = 42 cheesecake slices. She makes a total of 42 x $7 = $294.