The circumference of a circle is: 2*pi*radius
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49 + c units
If: a = 2b+c Then: a-c = 2b And: b = (a-c)/2
a + b + c = 180 b = 3a c = 5a Substituting the values of b and c into the first equation. a + 3a + 5a = 180 or 9a = 180 so that a = 20 then b = 3a = 3*20 = 60 and c = 5a = 5*20 = 100
x = b/(a + c)
well, m is the slope and c is the y-intercept