I need help with Ques no 2

guLIL allu assigning its return value to a variable named result. int doubleItint value) 2. Given the following function header: double harmonie(int a, int b, int c) and the following function call: double harmonicMean = harmonic (10, 25, 34); What will be the value of the parameter variable named after the call is executed? 3. Compose a C++ function named cimes Seven. The function should accept an integer (int) argument. When the function is called, it should display the product of the argument multiplied times seven (7). 4. Compose a C++ function named getSpeed that uses a reference parameter variable named speed to accept an integer argument. The function should prompt the user to enter a number in the range of 20 through 70. Set the parameter variable to zero if the user enters a number outside the range of 20 through 70. 5. Given the following prototype statement for a function that determines the minimum value between two given integer values: int minimum(int a, int b)