Challenge $3-$ Basic Function

You need to write a function in your dinner app that will display all of the costs associated with your dinner.

Underneath the variables below, write a function called displayCost

Inside the function create the following constants:

perPersonCost $($Double$)$ set equal to costPerHour times Double$($days$)$

groupCost $($Double$)$ set equal to perPersonCost times Double$($numberOfPeople$)$

tax $($Double$)$ set equal to groupCost times $0\mathrm{.}09$

total $($Double$)$ set equal to groupCost plus tax

Print total inside your function and call the function.

Remember you will need to convert your Int variables to Doubles when performing operations