In this exercise, you create an application that calculates a customer's cable bill. Create a Windows Forms application. Use the following names for the project and solution, respectively: Cable Direct Project and Cable Direct Solution. Save the application in the VB$9$e$\backslash$Chapo$6$ folder. $($F$6\mathrm{.}1,$ F$6\mathrm{.}3,$ F$6\mathrm{.}5,$ A$6\mathrm{.}4,$ A$6\mathrm{.}5,$ A$6\mathrm{.}7-$A$6\mathrm{.}10)$

a$.$ Create the interface shown in Figure $6-51.$ Display numbers from o through $20$ in the lstPremium control. Display numbers from o through $100$ in the lstConnections control. When the interface appears, the first item in each list box should be selected.

b$.$ The Calculate button's Click event procedure should calculate and display a customer's cable bill. The cable rates are shown in Figure $6-52.$ Business customers must have at least one connection. Use two functions: one to calculate and return the total due for business customers, and one to calculate and return the total due for residential customers.

c$.$ The form's FormClosing event procedure should verify that the user wants to close the application.

d$.$ The total due should be cleared when a change is made to a radio button or list box.

e$.$ Save the solution and then start and test the application. $($The total due for a business customer with $3$ premium channels and $12$ connections is $$254\mathrm{.}50.$ The total due for a residential customer with $3$ premium channels is $$49\mathrm{.}50.)$