I need this code to have function definition, function prototype and function calling   #include #include using namespace std; int main() {     ifstream inFile;     inFile.open ("numbers.txt");     int numberOfItems = 9;     int number;     int sum=0;     float average;     if (inFile.fail())     {         cout << "Error opening file." <> number)         sum = sum + number;         numberOfItems++;     average = sum / numberOfItems;     cout << "Average: " << average;     inFile.close();     return 0; }   The numbers from the text should be: 78 85 2 45 12 99 65 9 15 65

#include <iostream> using namespace std; int rectArea (int len, int wid) { return len * wid; } int main () { int length, width; cin >> length >> width; cout << "The area of a " << length << " by " << width << " rectangle is " << /*add code to call the reacArea function */ << "." << endl; return 0; }

Module/Week 3 ASSIGNMENT (CONTROL STRUCTURES . IF ..ELSE)Write a C++ program that computes a student’s grade for an assignment as a percentage given the student’s score and total points. The final score must be rounded up to the nearest whole value using the ceil function in the <cmath> header file. You must also display the floating-point result up to 5 decimal places. The input to the program must come from a file containing a single line with the score and total separated by a space. In addition, you must print to the console “Excellent” if the grade is greater than or equal to 90, “Well Done” if the grade is less than 90 and greater than or equal to 80, “Good” if the grade is less than 80 and greater than or equal to 70, “Need Improvement” if the grade is less than 70 and greater than or equal to 60, and “Fail” if the grade is less than 60. Submit C++ Programming Assignment 3 by 11:59 p.m. (ET) on Monday of Module/Week 3.

In this c++ program please explain every code. thank youuuuuuuuu!

Using this starter code:  #include <stdio.h> //function prototypesvoid PrintLine(int length, char theChar);void PrintRectangle(int width, int height, char theChar);void PrintTriangle(int baseLength, char theChar);void PrintInvertedTriangle(int height, char theChar); int main(void) {     char choice;    int a, b;       char character;        //asking for user input    printf("Which shape (L-line, T-triangle, R-rectangle, I-inverted triangle): \n");    scanf(" %c", &choice);    printf("Which character: \n");    scanf(" %c", &character);    switch (choice){      //if user input is for a triangle    case 'T':    case 't':    printf("Enter an integer base length between 3 and 25: \n");    scanf("%d", &a);    if (a >= 3 && a <= 25)       PrintTriangle(a, character);    else    printf("Length not in range.");    break;     //if user input is for a rectangle    case 'R':    case 'r':    printf("Enter an integer width and height between 2 and 25: \n");…

Please help in C++ I can only make changes in the white area not the grey

#include <iostream> #include <cmath>   using namespace std;   // declare functions void display_menu(); void convert_temp(); double to_celsius(double fahrenheit); double to_fahrenheit(double celsius);   int main() {   cout << "Convert Temperatures\n\n";       display_menu();     char again = 'y';     while (again == 'y')      {         convert_temp();           cout << "Convert another temperature? (y/n): ";         cin >> again;         cout << endl;     }     cout << "Bye!\n"; }   // define functions void display_menu()  {     cout << "MENU\n"         << "1. Fahrenheit to Celsius\n"         << "2. Celsius to Fahrenheit\n\n"; }   void convert_temp()  {     int option;     cout << "Enter a menu option: ";     cin >> option;       double f = 0.0;     double c = 0.0;     switch (option)      {         case 1:             cout << "Enter degrees Fahrenheit: ";             cin >> f;               c =…

In C++ A void function a. does not have a specific data type for the function output b. has a specific data type for the function output c. must be included after the "main" function of the program. d. is equivalent to a value-returning function except that a void function must be included before main