Solve the system of equations 2x + 3y = 40 and –2x + 2y = 20. a. x = –10, y = 20 b. x = 10, y = 20 c. x = –6, y = 4 d. x = 2, y = 12

Create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)