Answer:
-19n^4 - 8m^2 - 12m^4n
Step-by-step explanation:
8m^2 + 12m^4n + 9mn
-
19n^4 9mn
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-19n^4 - 8m^2 - 12m^4n
Answer:
13x-25
Step-by-step explanation:
7-2-30=5-30=-25
13x-25
So what you do is divide 12 and 15 to get 0.8 so your answer is 8 mph (constant rate)
The two ratios that are equivalent to, 2:9 are 18:81 and 12:54. Hope it helps