Answer:
20 shelves
Step-by-step explanation:
So you start by subtracting the 2 pieces of wood from the 8, which gives you 6. After that, she says that each of the smaller shelves is 1/3 a piece of wood. You have to multiply the 6 pieces of wood by 3 so that you get the total number of small shelves, which is 18. Then you add the two original shelves back in, so 18 + 2 = 20 total shelves.
