I need help setting up this code for an assignment

namespace SavingsAccount
{
    public class SavingsAccount
    {
        private static double annualInterestRate;
        private double savingsBalance;

        System.String savingsAccountName
        {
            get => getSavingsAccountName;
            set => setSavingsAccountName = value;
        }
       
    }
} 

 get => getSavingsAccountName;
 set => setSavingsAccountName = value;  

 public double SavingsBalance
 {
     get => Return SavingsBalance;
     set => SavingsBalance = value;
 } 

 public double SavingsBalance
{
    get => Return SavingsBalance;
    set => SavingsBalance = value * CalculateMonthlyInterest (value);
}

public double SavingsBalance { get; set; }