In the following subtraction problem, the same letters represent the same digits, and different letters represent different digits. If D = 0, C = 1 and E = 7, what digit does the letter A represent. ABCD - ABC = ADEF. State your answer and explain your thinking.

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

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.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.