Find the least common denominator for the expression.
+ 
A. 9x2(x + 3)2
B. 9x2(x + 3)
C. 9x(x + 3)(x - 3)(x2 + 3)
D. 9x2(x + 3)(x - 3)
Answer: D
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Solve the problem.Find the optimum number of batches (to the nearest whole number) of an item that should be produced annually (in order to minimize cost) if 190,000 units are to be made, it costs $3 to store a unit for one year, and it costs $600 to set up the factory to produce each batch. Assume that units of this item will be sold off throughout the year, so the cost equation will use the average cost.
A. 18 batches B. 24 batches C. 16 batches D. 22 batches
Solve.34 = 6x - 8
A. x = 40 B. x = 36 C. x = 7 D. x = 13
Write a mixed number to represent the measurement shown.In a speech class containing 62 students, there are 10 freshman, 16 sophomores, 
and 
What fraction of the class is NOT juniors?
A. 
B. 
C. 
D. 
Provide an appropriate response.What is wrong if two fractions are added and the result is expressed as a whole number and an improper fraction?
What will be an ideal response?