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: $10\mathrm{.}21$

As part of your program, define and use these functions:

$\backslash$table$[[$function$,$description,Input arguments,Returned result$],[$calcCost$($count$),$Calculate the pre$-$tax cost,$\backslash$table$[[$Count: an integer for the$],[$number of items$],[$purchased$]],\backslash$table$[[$Pretax total cost of items$],[$purchased$,$ accounting for$],[$discount if any$]]],[\backslash$table$[[$displayLine$($label$,],[$amount$)]],\backslash$table$[[$Display one line of the$],[$output$,$ formatted to a$],[$given width and number$],[$of decimal places$]],\backslash$table$[[$Label: the label for the$],[$displayed line$],[$Amount: the amount for$],[$the displayed line$]],\backslash$table$[[$None $($function displays$],[$to screen$)]]],[$display$($cost$,$ tax$),\backslash$table$[[$Display net cost, tax, and$],[$after$-$tax amounts using$],[$calls to displayLine$)],[$function$]],\backslash$table$[[$Cost: the pre$-$tax cost,$],[$calculated by calcCost