Liliana read two books in three months. What was her rate of reading, in books per month? Give your answer as a whole number or a fraction in simplest form

Hi idk what that is wait am how do i get out of here i’m new

Volume is length times width times height so
20 times 8 times 30 which is 4,800
surface area is ph (p is perimeter of base), h is height.
so perimeter would be length+length+width+width so 20+20+8+8 which is 56. so multiply 56 times 30 which is 1680. hope this !