Bruno wants to buy two and one-half dozens of pens. How many pens will he have?
Since a dozen is equal to 12, then two dozens are equal to 12 x 2= 
<gadget id="calculator">24</gadget>
<output>24</output>
24.
One-half dozen is equal to 12/2 = 
<gadget id="calculator">12/2</gadget>
<output>6</output>
6.
Thus, Bruno will have a total of 24 + 6 = 
<gadget id="calculator">24+6</gadget>
<output>30</output>
30 pens.

<result>30</result>