Tax deduction function

[Cadis]

I'm trying to write a function for whether or not tax deductions are applied based on income and family size but I keep getting errors in my build. If income is less than or equal to $30,000 with a household size of 4 or more, then no income tax is applied. Otherwise 25% deduction is applied.

Here is what I have.

  #include <iostream>
using namespace std;

int main()
{
	
	int income;
	double size, tax_deduction;
	
	cout << "Please enter your household income: $";
	cin>> income;
	cout<< "Please enter your household size: ";
	cin>>size;

	if (income <= 30,000, size > 4)
		tax_deduction: income*0;
	else 
		tax_deduction: income*.25;

	cout<< "Income: $" << income;
	cout<< "Family size: " << size;
	cout<< "Tax deduction: " << tax_deduction;





  getchar();
  getchar();

	return 0;
}

Any help would be appreciated.

[JayhawkZombie]

Here's your problem.
If you want to check multiple conditions in an if statement, you need to use &&, not a comma, and numbers (no matter how big) can't have commas in them.
Try this:
if ((income <= 30000) && (size > 4))

Don't put commas in numbers. The compiler won't interpret that as a number.

Hope that helps!

[LendraDwi]

Change (income <= 30,000, size > 4) to (income <= 30000&&size > 4)

[48T7M4Gy]

Isn't ':' meant to be '=' ?

why multiply income by zero when you could simply say that the tax deduction is zero? It would be certainly easier to read and check if you did.

[Cadis]

Thank you for all the replies! I'm still learning to use C++ so please bear with me.