Solve the problem.Suppose the demand for a certain item is given by 
, where p represents the price of the item. Find D'(5).
A. -21
B. 7
C. -23
D. 5
Answer: C
Mathematics
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Evaluate.8log8 11
A. 10 B. 8 C. 12 D. 11
Mathematics
State the domain of the rational function. h(x) = 
A. (-?, -10) ? (-10, 10) ? (10, ?) B. (-?, -8) ? (-8, 2) ? (2, ?) C. (-?, ?) D. (-?, 2) ? (2, ?)
Mathematics
If possible, solve each system by an algebraic method (substitution or addition method). Otherwise, state that the problem has no solution or an infinite number of solutions.x = -yy + x = 6
A. (1, 1) B. No solution C. (1, 5) D. Infinite number of solutions
Mathematics
Determine whether the relation is a function.Percent of work force in a certain town commuting by: 
A. It is not a function. B. It is a function.
Mathematics