B. The independent quantity is definitely not the words cause' of you think about it the number of words depends on the number of minutes.
If a=c and b=c then a=c this is transitive property
There are multiple answers, here are some.
4/10
8/15
and so on and so forth, to find these, just multiply each by two, three, and so on and so forth to find more.
Hope this helps!
is the greatest number that divides both numbers.