Evaluate the expression by applying the appropriate rule for basic operations with signed numbers. 
A. 8
B. -8
C. -20
D. 20
E. undefined
Answer: B
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Derive a class CombinedDiscount from DiscountPolicy, as described in Exercise 10. It should have a constructor that has two parameters of type DiscountPolicy. It should define the method computeDiscount to return the maximum value returned by computeDiscount for each of its two private discount policies. The two discount policies are described in Exercises 11 and 12.
What will be an ideal response?
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Indicate whether the statement is true or false
In Windows Explorer, a library displays files and folders of files of a similar type together regardless of where they are stored.
Answer the following statement true (T) or false (F)
How to access the context in android content provider?
A - Using getContext in onCreate B - Using intent C - Using getApplicationContext at anywhere in an application D - A & C E - A & B