C :

#include<stdio.h>
int main()
{double r;
printf("%0.2f\n",90.0);
}

C++ :

#include<cstdio>
using namespace std;
int main()
{
	float sss;
	sss=(8+12)*9/2.0;
	printf("%0.2f\n",sss);
	return 0;
}

Pascal :

program aa;
var a:real;
begin
 a:=90.00;
 write(a:0:2);
end.

Java :

import java.math.BigDecimal;
public class Main {
	public static void main(String[] args) {
		double s=(8+12)*9/2.0;
		BigDecimal bg=new BigDecimal(s);
		System.out.println(bg.setScale(2, BigDecimal.ROUND_HALF_UP));
	}
}