Answer:
C
Step-by-step explanation:
3x2 - 5x+1 + 2x2 +9x-6
Combine like terms
5x2+4x-5 which is C
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I would say C or D but D looks better
Answer: [A]: "mean" .
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Usually, the "standard deviation from the mean" is the "average" of concern.
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Slope intercept form is

where

is the slope
and

is the y-intercept
they give us that the slope is 2
so our

then to find

, we temporarily plug in the point they gave us for x and y
so

and solve for

3 = 2 + b
1 = b
so our

put this together and we get

as our answer