Jonah bought 6 pineapples for $3 each. Each pineapple could be cut into 12 pineapple rings. He sold 4 pineapple rings for $5 each. How much profit did Jonah make?
Jonah spent 6 x $3 = $
<gadget id="calculator">6*3</gadget>
<output>18</output>
18.
He made a total of 6 x 12 = 
<gadget id="calculator">6*12</gadget>
<output>72</output>
72 pineapple rings.
He sold 72/4 = 
<gadget id="calculator">72/4</gadget>
<output>18</output>
18 sets of pineapple rings.
He made 18 x $5 = $
<gadget id="calculator">18*5</gadget>
<output>90</output>
90.
His profit was $90 - $18 = $
<gadget id="calculator">90-18</gadget>
<output>72</output>
72.

<result>72</result>