I would be more than happy to answer, but you have to include your problem!
Answer:
20 books
Step-by-step explanation:
Height of stack = 35 inches
Thickness of one book
No. of books

We know that 57=100% and 5.7 is 10%
we need to find the percentage of the blue cars so that about 6 10%'s its about 61%
Answer:
the value has to be 54.6 and up
Step-by-step explanation:
The formula is pi * radius squared(or diameter) * height.
3.14 * 34 * 27 = 2882.52