Answer:
2.25 inches
Step-by-step explanation:
Number of books: 12
Height of stack: 27 inches
27 divided by 12 = 2.25 inches
9/4
27/12 = 9/4 inch
= 2,25 inch
0.0487804878
the answer will be 5 because it starts at 0.
I pretty sure its C
B
Hope that helps