Can some one help me on c++

Question

I was given the following question:

One acre of land is equivalent to 43,560 square feet. Write a program that calculates the number of acres in a tract of land with 389,767 square feet.

This is my code but I can seem to get the comas right and everywhere I read I get confused.

#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
double acre = 43,560;
double land = 389,767;

double conv = land/acre;
cout << land << " square feet equals " << conv << " acres.\n";
return 0;

}

Answer 1

Remove the commas from acre & land variables