Here’s an example on how to write one.
A) 2 and B) 9
Coefficients are the numbers in front of a variable. The x and y wouldn’t be considered coefficients.
Answer:
Step-by-step explanation:

I'm ASSUMING that we're talking about Three Ordered Ordered Pair Solutions.
If so, the answer is (0,−1),(1,2),(2,5).
Answer:
16v+4
Step-by-step explanation:
2(8v+2) = 16v+4