Use an equation to solve the problem.Sales tax on a $11 compact disc is $0.66. At what rate is sales tax computed?
A. 2%
B. 6%
C. 4%
D. 9%
E. 3%
Answer: B
Mathematics
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Find the domain of the rational function.f(x) = 
A. All real numbers except - 
and 0
B. All real numbers except - 
C. All real numbers except 
and 0
D. All real numbers except 
Mathematics
Estimate the sum or difference by rounding each number to the nearest hundred.
A. 2872 B. 2870 C. 2900 D. 2800
Mathematics
Evaluate the expression, given x = -2, y = 3, and a = -4.
A. -1 B. -10 C. 20 D. -20
Mathematics
For the given f(x) and g(x), evaluate the expression.f(x) = 
, g(x) = 
;
(fg)(x)
A. 4
B. 2|x|
C. 2
D. 4|x|
Mathematics