Solve.
= 6
A. 36
B. 
C. 6
D. 
Answer: C
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Solve the problem.The table below gives the median annual incomes for men and women in three cities in 2001. Assume that in 2002, the median annual incomes increased by 7% in all categories. Create a matrix that represents the median annual incomes for 2002. Round numbers to the nearest dollar. 
A. 
B. 
C. 
D. 
Find the larger number.-6 and -9
A. -9 B. -6
Solve.The average cost per tape, in dollars, for a company to produce x sports videotapes is given by the functionA(x) = 
for x > 0
Graph the function on the interval (0, ?) and complete the following:A(x) ? 
as x ? ?.
A. 
A(x) ? 1 as x ? ?.
B. 
A(x) ? 0 as x ? ?.
C. 
A(x) ? 15 as x ? ?.
D. 
A(x) ? 20 as x ? ?.
Find the focus and directrix of the parabola.x2 + 20y = 0
A. F: (-5, 0); D: y = 5 B. F: (0, -5); D: y = -5 C. F: (0, -5); D: y = 5 D. F: (0, -5); D: x = 5