One pie costs $4 for a piece. Each pie is having 3 pieces. During one hour the bakery can make 12 pies. Creating one pie costs the bakery $0.5. Considering the bakery would be able to sell all pie pieces, how much money would it make?
If the bakery can make 12 pies, this means there would be 12 * 3 = 
<gadget id="calculator">12*3</gadget>
<output>36</output>
36 pie pieces.
For all the pieces the bakery would make 36 * 4 = $
<gadget id="calculator">36*4</gadget>
<output>144</output>
144.
The cost of making 12 pies is 12 * 0.5 = $
<gadget id="calculator">12*0.5</gadget>
<output>6</output>
6.
That means the bakery would make 144 - 6 = $
<gadget id="calculator">144-6</gadget>
<output>138</output>
138.

<result>138</result>