What is the circumference of the circle?use 3.14 for pi

a.20.096
b.40.192
c.200.96
d.401.92
plsss help

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys