Answer all questions on there plz 100 points come on

What is the quotient of 42/3 divided by 4 1/5

Find the missing factor in exponential form 48^2=3^2 • ?

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.