Solve the problem.The table lists the average composite scores on a national entrance exam for selected years. 
Evaluate f(1991).
A. 130.5
B. 131.7
C. 130.9
D. 131.5
Answer: B
Mathematics
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Determine the center and the radius of the circle.x2 + y2 - 4x - 18y = 0
A. (2, 9), r = 
B. (9, 2), r = 85
C. (2, 9), r = 85
D. (9, 2), r = 
Mathematics
Solve the equation symbolically.log6 x = -4
A. x = -6?4
B. x = 
C. x = - (4)6
D. x = - 
Mathematics
Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = ln x - 2; relative to f(x) = ln x
A. Moved up 2 units
B. Moved right 2 units
C. Moved down 2 units
D. Moved down 2 units
Mathematics
Find the reciprocal.
A. 0
B. 1
C. 7
D. 
Mathematics