Emily has 7 times as many oranges as Sandra. Sandra has 3 times as many oranges as Betty. If Betty has 12 oranges, how many oranges does Emily have?
Sandra has 3 * 12 = 
<gadget id="calculator">3*12</gadget>
<output>36</output>
36 oranges.
So, Emily has 7 * 36 = 
<gadget id="calculator">7*36</gadget>
<output>252</output>
252 oranges.

<result>252</result>