Firstly, remember that there 2 half inches in an inch. If 100 pieces of sheet music are 0.5 inches tall, then 200 pieces are 1 inch tall.
Next, remember that in every foot there are 12 inches. We can multiply the number of pages of sheet music that is 1 inch tall to find how many would be 1 ft tall.
200 * 12
= 2,400 pieces
Hope this helps! Please feel free to send any questions my way :)
