5. Which of the following is a linear inequality in two variables? C. 8x s 16+y D. 11 + 2t 2 3t - 11 A. 5a - 3a> 5 B. 8c + 4 < 12-3c 6. Which inequality represents "the sum of x and y is at most 20"? C.x+y 2 20 A. x + ys 20 B. x+ y > 20 D. x + y< 20 7. Which of the following is true about the graphical solutions of a linear inequality in two variables? A. It is a line. B. It is a curve. C. It is region of points bounded by a curve. D. It is a region of points bounded by a line. 8. The statement, "the sum of two numbers is at least 45" can be expressed as: A. x+y> 45 B. x+y2 45 C. x+y< 45 D. x+ys 45

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