Alexa has a lemonade stand where she sells lemonade for $2 for one cup. If she spent $20 on ingredients, how many cups of lemonade does she need to sell to make a profit of $80?
To make a profit of $80, she needs to make $80 + $20 = $
<gadget id="calculator">80+20</gadget>
<output>100</output>
100.
She needs to sell $100 / $2 = 
<gadget id="calculator">100/2</gadget>
<output>50</output>
50 cups of lemonade.

<result>50</result>