I need help with how to make this in my program : Modify the class Loan by including monthly_payment as a data member of the Loan class and by adding...

I need help with how to make this in my program :

Loan monthly_payment Loanadd_loans, 

float add_loans(Loan loan1, Loan loan2);  

add_loans,paymentadd_loans monthly_paymentpayment

#include<iostream>

using namespace std;

class Loan {

public: