Simplify.9x - (7 - 2x)

A. 7x - 7
B. 9x - 9
C. 11x - 7
D. 11x + 7


Answer: C

Mathematics

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A. x = 4, y = 1, z = -4 B. x = -4, y = 4, z = 1 C. x = -4, y = 1, z = 4 D. Inconsistent

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A. x-intercept is (8, 0)   No y-intercept B. x-intercept is (0, 8)   No y-intercept C. No x-intercept   y-intercept is (0, 8) D. No x-intercept y-intercept is (8, 0)

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Subtract.6,859

A. 6,340 B. 6,346 C. 346 D. 6,320

Mathematics

Find the sum of the arithmetic sequence.(-6) + (-1) + 4 + 9 + ... + 39

A. 165 B. 160 C. 330 D. 170

Mathematics