4 Josh went shopping for DVDs and CDs on Tuesday and Wednesday. He paid $75 for 3
DVDs and 2 CDs on Tuesday and paid $50 for 1 DVD and 3 CDs on Wednesday. If
d represents the price of 1 DVD and crepresents the price of 1 CD, which is a
system of equations that could be used to determine the amount of each item?

Anyone know? is appreciated! will mark brainliest if correct!

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 are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2