John takes care of 10 dogs.  Each dog takes .5 hours a day to walk and take care of their business.  How many hours a week does he spend taking care of dogs?
He spends 10*.5=
<gadget id="calculator">10*.5</gadget>
<output>5</output>
5 hours per day.
That means he spends 5*7=
<gadget id="calculator">5*7</gadget>
<output>35</output>
35 hours per week.

<result>35</result>