A Base Class Named DeliveryFee Contains a Function Named CalcFee

question 42

Essay

A base class named DeliveryFee contains a function named CalcFee that calculates an order's delivery fee using the following formula: total * .05.The derived class named InstallationFee contains the CalcFee method.However,the fee formula is as follows: (total * .05)+ 250.Write the function for the derived class.

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