Answer:
Step-by-step explanation:
This is correct all you do is add them up like this:
30.27
1.9
+22.952
________
55.112
i believe it would be 144
5x - 2y = -2
-2x - (-7x) = -2x + 7x = 5x
y - 3y = -2y
0 - 2 = -2
I think the answer is a I think