Jack needs to put his shoes on, then help both his toddlers tie their shoes. If it takes Jack 4 minutes to put his shoes on, and three minutes longer to help each toddler with their shoes, how long does it take them to get ready?
First figure out how long it takes to help one toddler: 4 minutes + 3 minutes = 
<gadget id="calculator">4+3</gadget>
<output>7</output>
7 minutes.
Then multiply the time per toddler by the number of toddlers: 7 minutes/toddler * 2 toddlers = 
<gadget id="calculator">7*2</gadget>
<output>14</output>
14 minutes.
Now add the time spent helping the toddlers to the time Jack spends on his own shoes: 14 minutes + 4 minutes = 
<gadget id="calculator">14+4</gadget>
<output>18</output>
18 minutes.

<result>18</result>