1. Solve the system of equations. A. no solution B. (1, 1, 2) C. (0, -2, 7) D. infinite number of solutions Hint 2. What are the solutions to the system y + 2x – 5z = 4, –2y – 4x + 10z = 8, 3y + x – 3z = 5? A. infinite B. no solution C. (2, 2, 1) D. (2, 2, –2) Hint 3. Solve the system 4y – 6x + 8z = 13, 10y – 15x + 20z = 6, y – 5x + 2z = 5. A. B. no solution C. infinite solutions D. (-3, 1, 7) Hint 4. At a firm, there are three workers that are supposed to work a combined 110 hours per week. Worker 1 gets paid \$10 per hour, worker 2 gets paid \$12 per hour, and worker 3 gets paid \$14 per hour. If the company wants their total income to be \$1268, how many hours should each one work if worker 3 and worker 2 work for the same amount of hours? A. worker 1: 40worker 2: 35worker 3: 35 B. worker 1: 14worker 2: 48worker 3: 48 C. worker 1: 54worker 2: 28worker 3: 28 D. worker 1: 44worker 2: 33worker 3: 33 Hint 5. What is true about a system of equations in three variables that has 1 solution? A. planes intersect in the same plane B. planes intersect in one point C. planes have no points in common D. planes intersect in one line Hint