Tara bought 8 packs of 5 canvas bags for $4 each. She painted them and sold them at a craft fair for $8 each. How much profit did she earn on her bags?
The total number of bags is 8*5 = 
<gadget id="calculator">8*5</gadget>
<output>40</output>
40.
The cost of the 40 bags is 40*4 = 
<gadget id="calculator">40*4</gadget>
<output>160</output>
160.
Tara sold the 40 bags at 8 each earning her 40*8 = 
<gadget id="calculator">40*8</gadget>
<output>320</output>
320.
Her profit was 320-160 = 
<gadget id="calculator">320-160</gadget>
<output>160</output>
160.

<result>160</result>