Subtract.(4x + 6) - (-8x + 6)
A. 12x + 0
B. -4x + 12
C. 12x + 12
D. 12x
Answer: A
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Solve the inequality by using the graph of the function.f(x) < 0, where f(x) = 
< 0 
A. [2, 6] B. (-?, 2] ? [6, ?) C. (-?, 2) ? (6, ?) D. (-?, 0) ? (2, 6)
Solve.The formula for the area of a square is A = s2 where s is the length of a side. Use this formula to find the length of a side of a building which has a square base with an area of 1850 square meters. Give your answer in exact form and as a decimal rounded to the nearest hundredth of a meter.
A. 5
? 43.01 m
B. 74
? 165.47 m
C. 3,422,500 m
D. 25
? 215.06 m
Solve using the elimination method.5 x - y = 19-5 x + y = -19
A. No solution B. (1, 4) C. Infinite number of solutions D. (4, 2)
Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
The length of the critical path from C is
A. 12 hours. B. 15 hours. C. 20 hours. D. 7 hours. E. none of these