Question: 3. Write a C++ program that allows the user to enter non-negative numbers (pressing the Return key after each number is entered). A negative number

3. Write a C++ program that allows the user to enter

3. Write a C++ program that allows the user to enter non-negative numbers (pressing the Return key after each number is entered). A negative number entered by the user indicates the end of the list of numbers. Output the total and average of the numbers the user entered excluding the negative number. 4. Write a C++ program that asks a user to enter the coefficients a, b, and c of a quadratic equation a 2 +b*c0 and outputs the solution(s). The C O program should indicate if there are no real solutions

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