If you mean (3n-2m)^2 then the answer is
9n^2-12mn+4m^2
So B
Answer:
The sheet steel costed $22.41 per square meter
Step-by-step explanation:
71
62
88
38
89
76
-15 (i'm inversing everything to make it simple)
The mean is -69.28
Answer: 4
Step-by-step explanation:
7-3=4