using System; using System.Collections.Generic; using System.Linq; namespace BlazingPizza { public class Order { public int OrderId { get; set; } public string UserId { get; set; } public DateTime CreatedTime { get; set; } public Address DeliveryAddress { get; set; } = new Address(); public LatLong DeliveryLocation { get; set; } public List Pizzas { get; set; } = new List(); public decimal GetTotalPrice() => Pizzas.Sum(p => p.GetTotalPrice()); public string GetFormattedTotalPrice() => GetTotalPrice().ToString("0.00"); } }