Exercise $7$: Dollar Store

A store sells all items for $$1.$ Customers buying $10$ or more items receive a $5\%$ discount. Additionally, there is $7\mathrm{.}5\%$ sales tax. Write a program that prompts the user for the number of items purchased and calculates the total cost before and after tax. Here is an example session:

Enter number of items: $10$

Net Cost: $9\mathrm{.}50$

Tax: $,0\mathrm{.}71$

After tax: $10\mathrm{.}21$

$1.$Create a Python code file named M$2$Lab$\_$Func$\_$Rev$\_$FirstLast.py $($replace "FirstLast" with your own name$)$

$2.$ Add a title comment block to the top of the new Python file using the following form

# A brief description of the project

# Date

# CSC$121$ m$2$Lab$-$Function Review

# Your Name

$3.$ Complete Exercise $7$ on page $85($Dollar Store$).(60$ points$)$

$4.$ Convert the program to a "Modularized" menu driven program, the zipped folder linked below contains a modularized menu driven program.

The three functions you created in step $3($calcCost$,$ displayLine and display$)$ above are to be saved in a DIFFERENT file $($so all $3$ functions in ONE file$).$ give the file a discriptive name.

The main file is to display the menu shown below and call the functions you saved in that other file, when$/$if the user chooses to calculate item cost.

Note the program should only stop if the usere enters $2,$ meaning the only when the user chooses to stop.

If a value other than $1$ or $2$ is entered, the program should display a statement that tells the user the value they entered is invalid and then display the menu again.

MenU$--------------$

Calculate Cost

Exit