Answer:
214 books
Step-by-step explanation:
136-58= 78 books in the second box
so to find the total you add the amount of books in the first box with the amount of books in the second to = 214
Common factors are 1,2,4 so the greatest one would be 4
One by one, divide 34 by 2, 3, 4, ..., if possible.
34/2 = 17
34 is not evenly divisible by any other number other than 17.
Thus, 34 = (2)(17) (answer)