Alocal reading club has a set of 12 hardback books, a set of 8 paperback, and a set of 36 magazines each set can be divided among the club members what is the greatest possible number of club members.

The GCF is 6 if u need me to explain id be happy to

The greatest possible number of club members is the greatest common factor of 12 8 and 36 because all of these numbers of books have to be divided evenly.
factor of 12
factor of 8
factor of 36
find the greatest common factor of all 3 and that should be your number. 
Hope this helps

7-4
7-3

3
4

the slope is 3/4
hope this helps!