A pen costs $9 more than a pencil. If a pencil costs $2, find the total cost of both items.
A pen costs $9 more than $2 which is $9+$2 = $
<gadget id="calculator">9+2</gadget>
<output>11</output>
11.
Altogether they cost $11+$2 = $
<gadget id="calculator">11+2</gadget>
<output>13</output>
13.

<result>13</result>