Find the domain of the composite function f?g.f(x) = 3x + 15,g(x) = x + 3
A. (-?, 8) or (8, ?)
B. (-?, ?)
C. (-?, -5) or (-5, -3) (-3, ?)
D. (-?, -8) or (-8, ?)
Answer: B
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Evaluate the expression.3 ? 
A. - 
B. - 
C. 33
D. - 
Identify the type of surface represented by the given equation.
+ 
- 
= 1
A. Hyperboloid of two sheets B. Elliptical cone C. Ellipsoid D. Hyperboloid of one sheet
Provide an appropriate response. Accountants often use the median when studying salaries for various businesses. What is the median of the following salary list? $32,084, $21,983, $27,596, $43,702, $38,840, $25,997.
A. $27,596 B. $29,840 C. $32,084 D. There is no median for this data set.
Solve the problem.In the following formula, y is the minimum number of hours of studying required to attain a test score of x: 
How many hours of study are needed to score 94?
A. 100.04 hr B. 14.53 hr C. 62.20 hr D. 6.22 hr