12.
1: n•n= n^2
2: n•(-2)= -2n
3: 2•n= 2n
4: 2•(-2)= -4
=n^2-2n+2n-4
= n^2-4
It is the last answer. because the shaded part is above the line, it is greater than. the slope is 1/3. that leaves only one more equation remaining, so the answer is the last one.<span />
Answer:
See photo
Step-by-step explanation:
= 
1 = slope intercept
Answer:D:102
Step-by-step explanation: