Solve the problem.The following table shows the amount of income tax paid in 2005 by four people selected at random from a certain town. 
Find the average amount of income tax paid in 2005 by the two women.
A. $4,500
B. $3,888.75
C. $3,277.50
D. $9,000
Answer: A
Mathematics
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Find the cross product and determine whether the proportion is true or false.
= 
A. 100 ? 
; false
B. 15 = 15; true
C. 
? 140; false
D. 35 = 35; true
Mathematics
Solve by the quadratic formula. Simplify answers. Use i notation for nonreal complex numbers.x2 - 14x + 53 = 0
A. x = 7 ± 2i B. x = 5, 9 C. x = 7 ± 4i D. x = 7 + 2i
Mathematics
Determine whether S defines a function.S = {(-9, 9), (-9, 4), (-1, -2), (4, 2), (8, 4)}
A. No B. Yes
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics