$1.$Write down the step$-$by$-$step instructions on how to solve the problem, write a program to create the text file Cowboy.txt containing the information in Table $8\mathrm{.}2.$

$2.$ Write down the step$-$by$-$step instructions on how to solve the problem, Suppose the price of saddles is reduced by $20\%.$ Use the file Cowboy.txt to create a file, Cowboy$2.$txt$,$ containing the new price list.

$3.$ Write down the step$-$by$-$step instructions on how to solve the problem, write a program to add the data Winchester Rifle, $20\mathrm{.}50$ to the end of the file Cowboy.txt$.$

$4.$ Write down the step$-$by$-$step instructions on how to solve the problem Suppose an order is placed for $3$ Colt Peacemakers, $2$ Holsters, $10$ pairs of Levi Strauss jeans, $1$ Saddle, and $4$ Stetsons. Write a program to perform the following tasks:

a$.$ Create the file Order.txt to hold the numbers $3,2,10,1,$ and $4.$

b$.$ Use the files Cowboy.txt and Order.txt to display a sales receipt giving the quantity, name, and cost for each item ordered.

c$.$ Compute the total cost of the items and display it at the end of the sales receipt

$5.$ Write down the step$-$by$-$step instructions on how to solve the problem Write a program to request an additional item and price from the user and then create a file called Cowboy$2.$txt containing the information in the file Cowboy.txt with the additional item $($and price$)$ inserted in its proper alphabetical sequence. Run the program for both of the following data items: Boots, $20\mathrm{.}00$ and Horse, $35\mathrm{.}00.$

$6.$ Write down the step$-$by$-$step instructions on how to solve the problem Write a program to allow additional items and prices to be input by the user and added to the end of the file Cowboy.txt$.$ Include a method to terminate the process.

$7.$ Write down the step$-$by$-$step instructions on how to solve the problem Write a program using a StreamReader that displays the contents of the file Cowboy.txt in a DataGridView control.