use c++
Package Inheritance Hierarchy) Package-delivery services, such
as FedEx®, DHL® and UPS®, offer a number of different shipping
options, each with specific costs associated. Create an inheritance
hierarchy to represent various types of packages. Use class Package
as the base class of the hierarchy, then include classes
TwoDayPackage and OvernightPackage that derive from Package.
Base-class Package should include data members representing the
name, address, city, state and ZIP code for both the sender and the
recipient of the package,...