Answer:
5
Step-by-step explanation:
Slope for...:
7: 1
8: -2
9: 12/0
10: 4/3
11: 2/-7
12: 0/4
13: -1/3
14: 5/9
15: 1/4
Hope this helps!
-1.5 (3n-2)
Factor -1.5 out of -4.5n+3
The answer is 2.25 that makes profit