C++ multiple choice, computer science homework help

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D. The class implementation describes the contract of the class and the class declaration implements the contract. E. All of the above 17. Variables that are accessible by instances of all classes are A. public variables B. private variables C. static variables D. instance variables 18. When invoking a function by value, is passed. A. the object is copied, then the reference of the copied object B. a copy of the object C. the reference of the object D. the contents of the object 19. The average-time complexity for merge sort is A. O(n*n) B. O(nlogn) C. (n) D. O(1) E. O(logn) 20. What is the output of the following code? string s("welcome"); s.append(" abc"); cout
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hello i have done the assignment but for question 4 and 5 it was not complete please resend .check the answer i...


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