Jane's goal is to exercise 1 hour a day, 5 days a week.  If she hits her goal weekly for 8 weeks, how many hours has Jane exercised?
Her goal is 1 hour a day for 5 days so on a weekly basis, she exercises 1*5 = 
<gadget id="calculator">1*5</gadget>
<output>5</output>
5 hours.
If she works 5 hours a week for 8 weeks then she exercises 5*8 = 
<gadget id="calculator">5*8</gadget>
<output>40</output>
40 hours in 8 weeks.

<result>40</result>