Y :!2!298-76-6-7-8-&-8-7-6
Check the picture below.
recall that a solution is where both graphs meet.
To find the difference you would need to make the denominator equal so I changed it to 15 and the difference would be 7/15
I would say C.
A and B make no sense, you want to divide the group randomly because you want to test the new medicine. D is a bit more logical than A and B but still can't, because that isn't random.
Answer:
yeah I'm sorry I dont understand this one either hun