Solve the system. If there is no solution or if the system's equations are dependent, so state.
A. {(2, -5, -26)}
B. no solution or ?
C. infinitely many solutions; dependent equations
D. {(-5, 2, 9)}
Answer: C
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Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.(9x18y-2)9/2
A. 
B. 
C. 
D. 19,683x81y9
Find the whole.40% of what number of drives is 66 drives?
A. 1650 B. 26.4 C. 16.5 D. 165
Provide an appropriate response.When asked to describe logarithms in one simple sentence, the teacher said, "Logarithms are exponents". What is meant by this sentence?
What will be an ideal response?
Solve the problem.The profit from the expenditure of x thousand dollars on advertising is given by 
Find the marginal profit when the expenditure is 
A. 700 thousand dollars B. 580 thousand dollars C. -85 thousand dollars D. 1060 thousand dollars