Solve by making a u-substitution.x6 + 26x3 - 27 = 0
A. {3, -1}
B. {3, 1}
C. {-3, -1}
D. {-3, 1}
Answer: D
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Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log17
A. 
log17mn - 
log178
B. 
log17m + 
log17n - log178
C. 
log17m ? 
log17n ÷ 
log178
D. 
log17m + 
log17n - 
log178
Use the given graph of y = ax + b to solve the inequality. Write the solution set in interval notation.5x - 8.8 > 0
y = 5x - 8.8
A. (1.8, ?) B. (-?, 1.8) C. [1.8, ?) D. (-?, 1.8]
Solve the problem.Chuck's regular hourly rate is $12.88 per hour. He is paid time-and-a-half for overtime work. What is Chuck's overtime rate?
A. $15.46 B. $14.38 C. $6.44 D. $19.32
For the given functions f(x) and g(x), find a value x for which (f?g)(x) = (g?f)(x).f(x) = x2 + 6x + 9, g(x) = x + 4
A. x = 
B. x = 
C. x = - 
D. x = - 