Lizzy: 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?.
Me: Hmmm, let me think. I think this is the detailed solution:
Sandra has 3 * 12 = 36 oranges. So, Emily has 7 * 36 = 252 oranges. Final answer: 252.