Marie ordered one chicken meal that costs $12, 5 packs of milk that costs $3 each, 4 apples that cost $1.50 each, and some boxes of pizza. Marie paid a total of $50. How many boxes of pizza did Marie order if each box costs $8.50?
Five packs of milk cost $3 x 5 = $
<gadget id="calculator">3*5</gadget>
<output>15</output>
15.
Four apples cost $1.50 x 4 = $
<gadget id="calculator">1.5*4</gadget>
<output>6</output>
6.
The total cost of the chicken meal, milk, and apples is $12 + $15 + $6 = $
<gadget id="calculator">12+15+6</gadget>
<output>33</output>
33.
Thus, the boxes of pizza cost $50 - $33 = $
<gadget id="calculator">50-33</gadget>
<output>17</output>
17.
Therefore, Marie ordered $17/$8.50 = 
<gadget id="calculator">17/8.5</gadget>
<output>2</output>
2 boxes of pizza.

<result>2</result>