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Answer:
C
Step-by-step explanation:
You can't divide 12 by 9, if you want a number with no decimals that is.
In order to get an equation is slope intercept form, we need to find the slope.
The formula is:
y2 - y1
———-
x2 - x1
In this case:
10 - 2
———
7 - 3
=
8/4
2
Now that we know the slope, we can plug it into y = mx + b with x and y being x1 and y1.
y = 2x + b
10 = 2(7) + b
10 = 14 + b
-4 = b
Now, we can construct our equation.
y = 2x - 4
Hope this helped!
Comment
The formula for density is

Givens
V = 163.5 mL
d = 0.492 grams / mL
Solution
m = d * V The formula has been rearranged.
m = 0.492 * 163.5
m = 80.442 grams.
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