Janet needs 5 tickets to ride the roller coaster and 3 tickets to ride the giant slide. How many tickets does she need to ride the roller coaster 7 times and the giant slide 4 times?
First find how many tickets she needs for the roller coaster: 5 tickets/ride * 7 rides = 
<gadget id="calculator">5*7</gadget>
<output>35</output>
35 tickets.
Then find how many tickets she needs for the giant slide: 3 tickets/ride * 4 rides = 
<gadget id="calculator">3*4</gadget>
<output>12</output>
12 tickets.
Then add the number of tickets she needs for each ride to find the total number of tickets she needs: 12 tickets + 35 tickets = 
<gadget id="calculator">12+35</gadget>
<output>47</output>
47 tickets.

<result>47</result>