3 Error messages?

Hey everyone. I have this program due for an assignment tomorrow and I have 3 error messages in it. I have no clue where I went wrong. Can someone please help me? I know it can't be anything major, I just need some help please.

Here are the errors:

1>c:\users\user\documents\visual studio 2008\projects\emissions\emissions\emissions.cpp(36 ) : error C2144: syntax error : 'int' should be preceded by ')'
1>c:\users\user\documents\visual studio 2008\projects\emissions\emissions\emissions.cpp(36 ) : error C2660: 'permittedEmissions' : function does not take 0 arguments
1>c:\users\user\documents\visual studio 2008\projects\emissions\emissions\emissions.cpp(36 ) : error C2059: syntax error : ')'


Here is my program:

Code:

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#include<iostream>
using namespace std;

void displayMenu();
double permittedEmissions(int, double);

int main(){
        int type;
        double grams;
        double odometer;
        const double CUT_OFF = 50000;
        const double CO_L = 3.4;
        const double CO_G = 4.2;
        const double HC_L = 0.31;
        const double HC_G = 0.39;
        const double NO_L = 0.4;
        const double NO_G = 0.5;
        const double NMHC_L = 0.25;
        const double NMHC_G = 0.31;
        double permitted;

        displayMenu();

        cout << "Enter pollutant number>> " << endl;
        cin >> type;
        cout << "Enter number of grams emitted per mile>> " << endl;
        cin >> grams;
        cout << "Enter odometer reading>> " << endl;
        cin >> odometer;

        permittedEmissions(int type, double odometer);

        return 0;
}

void displayMenu(){
        cout << "          Menu" << endl;
        cout << "(1) Carbon monoxide" << endl;
        cout << "(2) Hydrocarbons" << endl;
        cout << "(3) Nitrogen oxides" << endl;
        cout << "(4) Nonmethane hydrocarbons" << endl;
}

double permittedEmissions(int type, double odometer){
        double permittedLevel;

        switch (type){
                case 1: if (odometer <= 50000){
                                        permittedLevel = 3.4;
                                }
                                else{
                                        permittedLevel = 4.2;
                                }
                                break;
                case 2: if (odometer <= 50000){
                                        permittedLevel = 0.31;
                                }
                                else{
                                        permittedLevel = 0.39;
                                }
                                break;
                case 3: if (odometer <= 50000){
                                        permittedLevel = 0.4;
                                }
                                else{
                                        permittedLevel = 0.5;
                                }
                                break;
                case 4: if (odometer <= 50000){
                                        permittedLevel = 0.25;
                                }
                                else{
                                        permittedLevel = 0.31;
                                }
                                break;
                default: cout << "Invalid Choice" << endl;
        }

        return permittedLevel;
}

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Thank you in advance for any and all help! (:

Quote:

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Code:

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main(){...         
permittedEmissions(int type, double odometer);
...}

---

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that's not how you call a function

Code:

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        permittedEmissions(type, odometer);

---

is what you want to do

When you call a function, just use the names of the variables, without their types.

Code:

---

permittedEmissions(int type, double odometer);

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Thank yall so much. I knew my problem wasn't that big. :)