Solve the inequality and graph the solution set.| x | ? 18
A. x ? 18 ; (-?, 18]
B. -18 ? x ? 18 ; [-18, 18]
C. x ? -18 or x ? 18 ; (-?, -18] ? [18, ?)
D. x ? -18 ; (-?, -18]
Answer: B
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Solve the problem.The graphs below show the first and second derivatives of a function 
. Select a possible graph of f that passes through point P.f'?f"
?
A. 
B. 
C. 
D. 
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Solve.Natasha rides her bike (at a constant speed) for 3 hours, helped by a wind of 2 miles per hour. Pedaling at the same rate, the trip back against the wind takes 7 hours. Find find the total round trip distance she traveled.
A. 42 miles
B. 
miles
C. 21 miles
D. 10 miles
Solve the problem.Find the standard form of the equation of the circle. Assume that the center has integer coordinates and the radius is an integer. 
A. x2 + y2 - 2x + 4y - 4 = 0 B. x2 + y2 + 2x - 4y - 4 = 0 C. (x - 1)2 + (y + 2)2 = 9 D. (x + 1)2 + (y - 2)2 = 9