Answer:
wheres the question part i can't give an answer if I don't know whats its asking
Answer:D
Step-by-step explanation:
This is combination.
If 4 books selected out of eight book in the shelf:
(4 combination 8)= 70
For hardback selection:
Then selection of 4 books out of the hardback, it means there is no paperbach will be:
(4 combination 6)= 15
So , if at least one paperback selected will be : 70-15
That is 55
Well, in slope-intercept form, the equation will be y = x + 4. In standard form, the equation will be x - y = -4.
Answer:
N = 3
Step-by-step explanation:

I hope I helped you^_^