Please help me it’s due today and i don’t understand, i’ll give brainliest.

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

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.

What can you determine about the solutions of this system