What will be the output of the following program?

#include<iostream.h> 
int main()
{
    float Amount;
    float Calculate(float P = 5.0, int N = 2, float R = 2.0);
    Amount = Calculate(); 
    cout<< Amount << endl; 
    return 0;
}

float Calculate(float P, int N, float R)
{
    int Year = 1;
    float Sum = 1 ;
    Sum = Sum * (1 + P * ++N * R);
    Year =  (int)(Year + Sum);
    return Year; 
}

What will be the output of the following program?

#include<iostream.h>
double BixFunction(double, double, double = 0, double = 0, double = 0);
int main()
{
    double d = 2.3;
    cout<< BixFunction(d, 7) << " ";
    cout<< BixFunction(d, 7, 6) << endl;
    return 0; 
}
double BixFunction(double x, double p, double q, double r, double s)
{
    return p +(q +(r + s * x)* x) * x;
}

Which of the following statement is correct about the program given below?

#include<iostream.h> 
long FactFinder(long = 5); 
int main()
{
    for(int i = 0; i<= 0; i++)
        cout<< FactFinder() << endl; 
    return 0;
}
long FactFinder(long x)
{
    if(x < 2)
        return 1; 
    long fact = 1; 
    for(long i = 1; i <= x-1; i++)
        fact = fact * i; 
    return fact; 
}

Which of the following statement is correct about the program given below?

#include<iostream.h> 
struct MyStructure
{
    class MyClass
    {
        public:
        void Display(int x, float y = 97.50, char ch = 'a')
        {
            cout<< x << " " << y << " " << ch;
        }
    }Cls; 
}Struc;
 
int main()
{
    Struc.Cls.Display(12, 'b');
    return 0; 
}

Which of the following statement is correct about the program given below?

#include<iostream.h>
const double BixConstant(const int, const int = 0);
int main()
{
    const int c = 2 ;
    cout<< BixConstant(c, 10)<< " "; 
    cout<< BixConstant(c, 20)<< endl; 
    return 0;
}
const double BixConstant(const int x, const int y)
{
    return( (y + (y * x) * x % y) * 0.2);
}