Answer:
i think the answer is -18x^(2)+9x+5
-18x^(2)+9x+5
Subtract 4x^2 from −14x^2
I hope this helps you
813,60 = ?%.1800
?/100.1800=813,60
?=813,60/18
?=45,2
Answer: idk jus needed the points so im answering
Y = -5x + 12 since the slope of that line is -5x and in order to pass through that point the y intercept must be 12
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Last answer: 
sorry couldn't find theata so I just used alpha.