C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {

            string[] combo = { "Widget 15.50", "Thingy 50.99", "Ratchet25.00", "Clanger115.49", "Fracker75.25" };
            string name = Convert.ToChar(combo[].Substring(0, 7));
            double price = Convert.ToInt32(combo[].Substring(7, 12));;

            parse(ref combo, ref name, ref price);


        }

        static void parse(ref string[] combo, ref string name, ref double price)
        {
            for (int x = 0; x < combo.Length; x++)
            {
                Console.Write(name + price + "\n");
            }


        }
   }
}

It gives me a syntax error for lines for 14 and 15.

Develop a C# console application that implements two parallel arrays in Main, one to hold double values called item_price and the other to hold strings called item_name. Each array will hold 5 values.  Use an initializer to fill the item_price array with the values  15.50, 50.99, 25.00, 115.49, 75.25.  Use an initializer to fill the item_name array with the values "Widget", "Thingy", "Ratchet", "Clanger", "Fracker".  This application will use a method to change the corresponding prices for items based on a price point and a multiplier which will require double value types.  The inputs for the price and multiplier are input from the console.
Create two static methods, one called changePrices and one called printit.  When the changePrices method is called from Main you should pass the item_price array by reference, the price point and price difference values input from the console to it.  The changePrices method should loop through the item price array and check the price point  to determine the increase in price for each price array element.