Answer:
2x+2y=6
Step-by-step explanation:
-4x + -2y = -18
2x + 3y = 24
2x + 2y = 6
Answer: Your answer is A!
Step-by-step explanation:
Answer:
6m-mn, or 5m-n.
7y+42+5y+30, or 12y+72.
Not sure exactly what you're asking for the third and fourth, but these are the first two simplified.
Answer:
Your dog will be 1.13 meters tall
Answer:
B
Step-by-step explanation:
2 walls are 30 x 9 and 2 walls are 20 x 9 and there are 4 units
30 x 9 = 270, 20 x 9 = 180
4(2)(270) + 4(2)(180) = 3600, so the answer is B