Simplify.

A.
B. 63x(x + 7)
C.
D.


Answer: A

Mathematics

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Provide an appropriate response.The solution of  ? 0 is

A. -5 ? x < -4, x > 2. B. x ? -5, -4 ? x ? 2. C. x ? -5, -4 < x < 2. D. x ? -4, x > 2. E. x = -5, x > 2.

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Solve. +  = - 

A. 27 B. -27 C. -28 D. empty set solution

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Suppose a traveler wanted to visit a museum, an art gallery, and the state capitol building. 45-minute tours are offered at each attraction hourly from 10 a.m. through 3 p.m. (6 different hours). Solve the problem, disregarding travel time.In how many ways could the traveler schedule all three tours before 1 p.m.?

A. 6 B. 1 C. 3 D. 9

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Evaluate.  when x = 10 and y = 5

A. 20 B. 90 C. 2 D. 15

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