1- Determine if (7, 6) is a solution of the system 2x - 3y = -4 2x + y = 4. Select one: A. Yes B. No C. Can't determine 2 - Solve the system x+y=6 3x - y = 6. Select one: A. (1, -3) B. (3, 3) C. (-3, 9) D. (2, 0) 3 - Solve the system y = 3x - 10 y = 3x + 1 Select one: A. (1, -7) B. (1, 4) C. (2, -4) D. No solution 4 - Solve the system 3x - 6y = 12 x - 2y = 4 Select one: A. (2, -1) B. (4, 0) C. No solution D. Infinitely many solutions 5 - When solving the system 5x - 4y = 9 x - 2y = -3, what is the best first step? Select one: A. Rewrite the second equation as x = 2y - 3. B. Rewrite the second equation as y = (1/2)x + 3/2 C. Rewrite the first equation as x = (4/5)y + 9/5 D. Rewrite the first equation as y = (5/4)y - 9/4 6 - Solve the system 5x - 4y = 9 x - 2y = -3. Select one: A. (1, -1) B. (4, 5) C. (5, 4) D. No solution 7 - Solve the system 2x - y = 6 3x + 2y = 5 Select one: A. (4, 2) B. (17/7, -8/7) C. (17, -8) D. No solution 8 - Solve the system y = (-1/2)x + 2 y = (3/4)x + 7. Select one: A. (-4, 4) B. (-1/2, 3/4) C. (0, 2) D. No solution 9 - When using the addition method to solve the system 4x - y = 22 3x + 4y = 26, what is the first best step? Select one: A. Add the first equation to the second equation. B. Multiply 4 to each of the first equation and add the equations. C. Multiply -4 to each of the first equation and add the equations. D. Multiply 3 to each of the first equation and 4 to each of the second equation and add them. 10 - Solve the system 4x - y = 22 3x + 4y = 26. Select one: A. (8, 0) B. (5, -2) C. (6, 2) D. No solution 11 - Solve the system 7x - 4y = 13 -7x + 6y = -11. Select one: A. (1, -3/2) B. (17/7, 1) C. (1, 2/3) D. No solution 12 - Solve the system 4x - y = 22 -4x + y = 26. Select one: A. (5, -2) B. (-5, 6) C. (7/25, -1/25) D. No solution 13 - Solve the system 2x - y = 3 4x + 4y = -1. Select one: A. (11/12, -7/6) B. (11/12, 7/6) C. (33/16, 3/8) D. No solution 14 - Consider the following problem: A rectangular lot whose perimeter is 1600 feet is fenced along three sides. An expensive fencing along the lot's length costs $20 per foot. An inexpensive fencing along the two side widths costs only $5 per foot. The total cost of the fencing along the three sides comes to $13,000. What are the lot's dimensions? You need not solve the problem. If x is the length of the expensive side and y is the length of an inexpensive side, what is the algebraic expression for the statement "A rectangular lot whose perimeter is 1600 feet is fenced along three sides?" Select one: A. x + y = 1600 B. 2x + 2y = 1600 C. x + 2y = 1600 D. 2x + y = 1600 15 - Refer to Question 14): Consider the following problem: A rectangular lot whose perimeter is 1600 feet is fenced along three sides. An expensive fencing along the lot's length costs $20 per foot. An inexpensive fencing along the two side widths costs only $5 per foot. The total cost of the fencing along the three sides comes to $13,000. What are the lot's dimensions? What is the algebraic expression for the statement "The total cost of the fencing along the three sides comes to $13,000?" Select one: A. 20x + 5y = 13000 B. x + y = 13000 C. 5x + 20y = 13000 D. 20x + 10y = 13000