Rihanna has $50 to go to the supermarket. Rihanna bought 6 mangoes and 6 cartons of apple juice. Each mango cost $3 and each carton of apple juice cost $3. How much money does Rihanna have left?
The cost of the mangoes is 6 mangoes * $3/mango = $
<gadget id="calculator">6*3</gadget>
<output>18</output>
18.
The cost of the apple juice is 6 cartons * $3/carton = $
<gadget id="calculator">6*3</gadget>
<output>18</output>
18.
Find the total cost of the groceries which is $18 + $18 = $
<gadget id="calculator">18+18</gadget>
<output>36</output>
36.
Rihanna has $50 - $36 = $14 left.

<result>14</result>