* 6. You plan to rent a car from XYZ Car Rental Company for a flat rate of $35 a day.

If you plan to use the car for 3 days or fewer, you must also pay a $10 insurance

fee per day. If you plan to use the car for more than 3 days, there is a $5

insurance fee per day. Write a piecewise-defined function that models this

function.