Answer:
Amy is 14 years old now.
Explanation:
This one is a bit wordy, but try to break down the word problem.
Amy is six years younger than Melody. Two years ago, Melody was three times as old as Amy.
So, Melody was 6(3)+2. Melody was 18 two years ago, so add 2 to that number. Subtract the answer (which is 20) by 6. Therefore, Amy is 14.