The Answer to your problem is:
#2 Answer:
13x + 7y
#4 Answer:
13x + 7y
I believe it's Distribute
The second answer is correct. On the paper, CD are in the same spots as XY, and so forth for the other segments.
Answer:
x=-2, y=3. (-2, 3).
Step-by-step explanation:
y=-x+1
y=3
----------
-x+1=3
-x=3-1
-x=2
x=-2
y=-(-2)+1
y=2+1=3
The answer is 6.66666666~