')' error throughout code

[nadia102]

I'm in the process of writing a program, and when I go to run it, the only error I get is ')' expected before 'x', ie the lines with the math equations. I've tried reworking it, adding parentheses, but to no avail! What am I missing?

#include <iostream>
#include <cctype>       // toupper function
#include <iomanip>      // decimal formatting
using namespace std;

int main()
{
    char user_input;    // User menu choice
    
    while (toupper(user_input) != 'q')     // As long as user chooses not to quit
    {
          cout << "Welcome! Please choose the following: " << endl;
          cout << "\ta)dvice\n\tb)mi\n\tc)heck\n\tq)uit" << endl;
          
          // **ADVICE**
          if (toupper(user_input) == 'a')
          {
           cout << "There is nothing as too much cheese....";
           }
           
           // **BMI**
           else if (toupper(user_input) == 'b')
           {
                int weight, height;              // vairables
                cout << "Enter weight (lbs): ";   // Get user data
                cin >> weight;
                cout << "Enter height in inches: ";
                cin >> height;
                
                double bmi = (weight / (height x height)) x 703; // calculate BMI
                cout << "BMI: " << fixed << setprecision(2) << bmi << endl;
                
                }
                
           // **CHECK**
           else if (toupper(user_input) == 'c')
           {       
                   double cost, tip_percent;     // variables
                   cout << "Enter total amount: " << endl;  // Get user data
                   cin >> cost;
                   cout << "Enter tip %: " << endl;
                   cin >> tip_percent;
                   
                   
                   const double TAX_RATE = 0.0825;    // Tax rate
                   double withTax = cost + (cost x TAX_RATE);      // Price with tax rate
                   double final_bill = (withTax x (tip_percent / 100)) + withTax;    // Final cost
                   
                   cout << "Your final amount with tip is: $" << fixed << setprecision(2) << final_bill << endl;
           }



}
return 0;
}

[TheToaster]

double bmi = (weight / (height x height)) x 703;

Here is your problem. In all the math expressions you are using 'x' to denote multiplication. x is not the multiplication operator. You have to use '*'. If you fix that, it should compile.