My first practical c++ program

#include <iostream>
#include <cmath>
using namespace std;

int main(){

int amount_of_small_rooms;
int amount_of_large_rooms;
int amount_of_guttters;
int amount_of_windows;
int amount_of_tiles;
int amount_of_cobwebs;
int price_of_large_room {30};
int price_of_small_room {10};
int price_of_window {5};
int price_of_gutter {25};
double price_of_tile {0.5};
int price_of_cobweb {1};
long int tax {10};

cout <<"hello, welome to Thenuka's cleaning service" << endl;
cout <<"=============================================================" << endl;
cout <<"Please enter how many small rooms you would like cleaned:";
cin >> amount_of_small_rooms;
cout <<"now please enter the amount of large rooms you would like cleaned:";
cin >> amount_of_large_rooms;
cout <<" please enter how many windows you would like cleaned:";
cin >> amount_of_windows;
cout << " please enter how many gutters you would like cleaned:";
cin >> amount_of_guttters;
cout << "now please enter how many tiles you would like to be cleaned:";
cin >> amount_of_tiles;
cout << "finally please enter the amount of cobwebs you would like cleaned:";
cin >> amount_of_cobwebs;
cout <<"=============================================================" << endl;
cout << "cost of windows:$" << amount_of_windows * price_of_window <<"" << endl;
cout << "cost of large rooms:$" << amount_of_large_rooms * price_of_large_room << "" << endl;
cout << "cost of small rooms:$" << amount_of_small_rooms * price_of_small_room << "" << endl;
cout <<"cost of gutters:$" << amount_of_guttters * price_of_gutter << "" << endl;
cout << "cost of tiles:$" << amount_of_tiles * price_of_tile << "" << endl;
cout << "cost of cobwebs:$" << amount_of_cobwebs * price_of_cobweb << "" << endl;
cout << "grand total(not including tax):$" << (amount_of_large_rooms * price_of_large_room) + (amount_of_small_rooms * price_of_small_room) + (amount_of_windows * price_of_window) + (amount_of_guttters * price_of_gutter) + (amount_of_cobwebs * price_of_cobweb) + (amount_of_tiles * price_of_tile) << "" << endl;
cout << "cost of tax:$" << (amount_of_large_rooms * price_of_large_room + amount_of_small_rooms * price_of_small_room + amount_of_windows * price_of_window + amount_of_guttters * price_of_gutter + amount_of_cobwebs * price_of_cobweb + amount_of_tiles * price_of_tile) / tax << "" << endl;
cout << "valid for 30 days" << endl;
cout << "==========================================================================";




return 0;
}