1. Solve the system –2x – 4y = 7, 3x + 5y = 9. A. B. C. D. (71, –39) Hint 2. Solve the system 3x + 2y – z = –1, –2x + –3y + 2z = 5, 4x – y + 3z = 11. A. (1, 4, –3) B. (2, –1, 2) C. (2, 4, –2) D. (1, –1, 2) Hint 3. Vince and Brian each need two kinds of items at the store. Vince bought 10 of item A and 14 of item B, and spent \$97. Brian bought 8 of item A and 25 of item B, and spent \$119. How much did each item cost? A. item A = \$1.14item B = \$2.10 B. item A = \$3item B = \$5.50 C. item A = \$2.10item B = \$1.14 D. item A = \$5.50item B = \$3 Hint 4. Solve 2.4x + 1.7y = 8.2, 3.8x – 0.8y = 5.3. Round to the nearest hundredth. A. (–1.86, –2.20) B. (1.86, –2.20) C. (–1.86, 2.20) D. (1.86, 2.20) Hint 5. Which method of finding solutions would work best to find the solutions to the system 12.4x – 3.66y = 12.19, 3.9x + 6.17y = 19.28, and why? A. elimination, because 6.17 is a factor of 3.66 B. Cramer's Rule, because there are fewer calculations. C. elimination, because Cramer's Rule doesn't apply to this problem D. Cramer's Rule, because none of the other methods will correctly solve the problem Hint