Find the amount of the sale before sales tax was added. Round to the nearest cent.Total Sale: $67.87Sales Tax Rate: 6%
A. $64.03
B. $63.43
C. $42.42
D. $64.64
Answer: A
Mathematics
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State the domain of the rational function.g(x) = 
A. (-?, ?) B. (-?, -3) ? (-3, ?) C. (-?, 4) ? (4, ?) D. (-?, 0) ? (0, ?)
Mathematics
Find the slope of the polar curve at the indicated point.r = 5 cos 3?, ? = 
A. 
B. - 
C. 
D. -
Mathematics
Complete the square and write the equation in standard form. Then give the center and radius of the circle and graph the equation.x2 + y2 - 12x + 2y + 21 = 0
A. (x - 6)2 + (y + 1)2 = 16
center (6, -1), r = 4
B. (x + 6)2 + (y + 1)2 = 16
center (-6, -1), r = 4
C. (x + 6)2 + (y - 1)2 = 16
center (-6, 1), r = 4
D. (x - 6)2 + (y - 1)2 = 16
center (6, 1), r = 4
Mathematics
Simplify the expression. Assume that all variables are positive and write your answer in radical notation.
? 
A. 
B. 
C. 
D. 
Mathematics