Square greater than 20

Write a query that returns list of numbers and their squares only if square is greater than 20
Expected input and output
[7, 2, 30] → 7 - 49, 30 - 900
using System;
using System.Collections.Generic;
using System.Linq;

namespace CSharpExercises.Exercises.LINQ
{
    class SquareGreaterThan20Task
    {
        public static void Main()
        {
            List<int> Numbers = new List<int> { 3, 9, 2, 4, 6, 5, 7 };

            var SelectedNumbers = Numbers.Where(x => x * x > 20);

            foreach (var s in SelectedNumbers)
            {
                Console.Write($"{s} - {s * s}, "); // 9 - 81, 6 - 36, 5 - 25, 7 - 49,
            }
        }
    }
}