Hi!
You're tripling three dimensions in this case; the length, the width, and the height. Since you're tripling all three of them, and not just one, you don't multiply the original by 3 just once, you multiply it by 3, three times, for all 3 dimensions.
You can use 3 ^ 3, or 3 * 3 * 3, to figure out how much you have to multiply the original by, since you're multiplying 3 by itself 3 times.
3 * 3 * 3 = 27
So you want to multiply the original value, in this case 200, by 27.
200 * 27 = 5,400 toothpicks
Hope this helped!
