If Janet reads 80 pages a day and Belinda reads 30 pages a day, how many more pages does Janet read in 6 weeks?
First find the total number of days in 6 weeks: 6 weeks * 7 days/week = 
<gadget id="calculator">6*7</gadget>
<output>42</output>
42 days.
Then find the total difference in the number of pages Janet and Belinda read each day: 80 pages/day - 30 pages/day = 
<gadget id="calculator">80-30</gadget>
<output>50</output>
50 pages/day.
Then multiply the daily difference by the number of days to find the total difference in the number of pages they read: 50 pages/day * 42 days = 
<gadget id="calculator">50*42</gadget>
<output>2_100</output>
2100 pages.

<result>2_100</result>