1.
#include <iostream>#include <string>
using namespace std;
int main(){    string chars; // This is where we will put our @ signs and print them    for(int x=0;x < 5; x++){
        chars = chars + '@'; // This will concatenate an @ sign at the end of the variable        cout << chars << "\n";    }}
2.
#include <iostream>#include <string>
using namespace std;
int main(){    string name; // Our variable to store the name    cout << "What is your name? \n"; // Asks the user for their name    cin >> name;    cout << "\nWell, hello " << name << "!";}
3.
#include <iostream>#include <string>
using namespace std;
int main(){    int number; // Our variable    cout << "Enter a number\n"; // Asks for a number    cin >> number;    cout << "You entered " << number << "%!";}
4.
#include <iostream>#include <string>
using namespace std;
int main(){    int number; // Our variable    cout << "Enter a number\n";    cin >> number;
    int check = number % 2; // The modulo operator (the percent sign) gets the remainder of the quotient    if (check == 0) {        cout << number << " is even!"; // If the remainder is 0 then it prints out "x is even"    } else {        cout << number << " is odd!"; // If the remainder is not 0 then it prints out "x is odd"    }}
5.
#include <iostream>#include <string>
using namespace std;
int main(){    float r; // Our variable    cout << "Enter a radius\n";    cin >> r;    if (r < 0){        cout << "Lol. No."; // If the radius is less than zero print out that message    }    float circumference=2*3.14*r;    float area=r*r*3.14;    cout << "\n\n Circumference of circle: " << circumference;    cout << "\n Area of circle: " << area;}
        
             
        
        
        
Answer:
When you click the attachment button a window pops up allowing you to select the file/s you want to upload 
You can also drag and drop file/s this is an alternative method 
Explanation:
Microsoft Outlook is a personal information manager software system from Microsoft. 
Though primarily an email client, Outlook also includes such functions as calendaring, task managing, contact managing, note-taking, journal logging, and web browsing. Wikipedia
 
        
             
        
        
        
Clouds might be ordered by shape and by height. Luke Howard, a British drug specialist was the first to portray cloud shapes utilizing Latin terms, for example, cirrus, cumulus or stratus. The division of mists into ten fundamental cloud structures or cloud genera depends on his productions.
        
                    
             
        
        
        
I believe lightbulbs have different brightness because of there quality parts that make it. The cheaper they are usually the worse quality. That is my theory.
        
             
        
        
        
Using the knowledge in computational language in C++ it is possible to write a code that asks the user to enter a number of gallons. 
<h3>Writting the code:</h3>
<em>#include <iostream></em>
<em>using namespace std;</em>
<em>int main()</em>
<em>{</em>
<em>       float gallons, cufeet;</em>
<em>       cout << "\nEnter quantity in gallons : ";</em>
<em>       cin >> gallons;</em>
<em>       cufeet = gallons / 7.481;</em>
<em>       cout << "Equivalent in cublic feet is " << cufeet << endl;</em>
<em>       return 0;</em>
<em />
<em>}</em>
See more about C++ at brainly.com/question/19705654
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