Answer:
-19n^4 - 8m^2 - 12m^4n
Step-by-step explanation:
8m^2 + 12m^4n + 9mn
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19n^4 9mn
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-19n^4 - 8m^2 - 12m^4n
Answer:
x^3y^2
Step-by-step explanation:

Sorry I don't know man it could bed. I mean I am guessing.
$50 x 7 = $350
Answer: Her account is reduced by $350 in that week.
It has four intersecting line segments lol