A pie shop charges $5 for a slice of pie. They cut each whole pie into 4 slices. How much money will the pie shop make if they sell 9 pies?
A pie contains 4 slices so the pie shop makes 5*4=$
<gadget id="calculator">4*5</gadget>
<output>20</output>
20 for a pie.
If they sell 9 pies, they make 9*20=$
<gadget id="calculator">9*20</gadget>
<output>180</output>
180.

<result>180</result>