a3sol.cpp

// Assignment 3 solution
#include <iostream>
using namespace std;
int main()
{
    cout.setf(ios::fixed);
    cout.precision(1);
    float hours, gross, tax, net, rate;
    cout << "Enter hours worked: ";
    cin >> hours;
    if(hours > 40) {
        gross = 40 * 12 + (hours - 40) * 16;
    }
    else {
        gross = hours * 12;
    }
    cout << "Gross pay is $" << gross << "\n";
    if(gross > 400) {
        rate = .12;
    }
    else {
        rate = .10;
    }
    tax = gross * rate;
    cout << "Your tax is $" << tax << " (" << rate*100 << "%)\n";
    net = gross - tax;
    cout << "Your net is $" << net << "\n";
    return 0;
}

loop-example.cpp

// Loop example. This prints the integers from 1 up to
// (and including) the number the user types.
#include <iostream>
using namespace std;
int main()
{
    int n=0, i=1;
    cout << "Enter an integer: ";
    cin >> n; 
    while(i <= n) 
    {
        cout << i << "\n";
        i = i + 1;
    }   
    return 0;
}

quizzes.cpp

// Quiz average, dropping lowest

#include <iostream>
using namespace std;
int main()
{
    float q1=0, q2=0, q3=0;
    float average;
    float dropped;
    cout << "Enter quiz 1: ";
    cin >> q1;
    cout << "Enter quiz 2: ";
    cin >> q2;
    cout << "Enter quiz 3: ";
    cin >> q3;
    // Drop the lowest
    if(q1 <= q2 && q1 <= q3) {
        dropped = q1;
    }
    else if(q2 <= q3 && q2 <= q1) {
        dropped = q2;
    }
    else {
        dropped = q3;
    }
    cout << "Dropping lowest: " << dropped << endl;
    average = (q1 + q2 + q3 - dropped) / 2;
    cout << "Average is " << average << endl;
    
    return 0;
}