Simplify the expression by combining like terms.9x + 4 + 3x + x - 8
A. 11x - 4
B. 12x + 4
C. 12x - 4
D. 13x - 4
Answer: D
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Multiply. Assume that all variables represent nonnegative real numbers.
A. 3x2 - x 
- 3x 
+ 
B. 3x2 + 
C. 3x2 - x 
- 
- 
D. 3x2 - x 
- 3x 
Find the eccentricity of the hyperbola.Find the eccentricity of a hyperbola centered at the origin having a focus of 
and corresponding directrix 
A. 
B. 
C. 
D. 
Use the percentage method of withholding to find the federal withholding tax, a 6.2% FICA rate to find the FICA tax, and 1.45% to find the Medicare tax. Then find the net pay for the employee. Assume that the employee has not earned over $110,000 so far this year.
Karen Smith has gross earnings of $5312.15 monthly. She is single and has 2 withholding allowances.
A. $4905.77 B. $4504.93 C. $4098.55 D. $5712.99
Perform the indicated operation and round as indicated.
hundredths
A. 0.72 B. 0.02 C. 0.07 D. 0.22