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kenny6666 [7]
3 years ago
8

Please help!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Dovator [93]3 years ago
4 0
Collect like terms:
You have 2 with mn so 9mn - 9mn =0
You also have 2 with m4n so -19m4n - 12m4n = -31m4n
Put it together:
-31m4n -8m2
So C
Let me know if you have any questions
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Lina20 [59]
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Now from the information we already have, we know that 3 pounds of hamburger will cost 6 dollars. 

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