Help me please this is dew by the end of the day

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.

How many grams the dog will eat in 3 days?

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.