Use the interior angle theorem
(7-2)180 = 900
900 / 7 = roughly 128.6
your answer is C
-5v = 6v + 5 - v
-5v - 6v + v = 5
-11v + v = 5
-10v = 5
v = 5/-10
v = -1/2
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-3(b+9)=-6
-3b-27=-6
-3b=-6+27
-3b= 21
b= 21/-3
b=7
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-22=-p-12
-22+12=-p
-10=-p
10=p
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-2/5=-1/3m+3/5
-2/5-3/5=-1/3m
-1=-1/3m
-3=m
Divide each term in the y column by 2 to go from this list {8, 2, 0, 2, 8} to this list {4, 1, 0, 1, 4}
This list {4, 1, 0, 1, 4} is a bunch of perfect squares so it suggests that y = x^2
However we must double the values to get back to the original list. So the rule is y = 2*x^2
Answer:
31.5
Step-by-step explanation:
I answered this question before
Well, ratios are basically fractions. There are 12 boys, so the ratio is 12/25. Since 25 - 12 is 13, there are thirteen girls, so the ratio of girls to student is 13/25.