Periodic taventory Using FIFO, UFO, and Weighted Average Cost Methods The units of an item avallatle for sale during the year were as folloms: There are 20 units of the Aem in the phyical imventory at December 31. The periodic ieventory 5ystem is used. Determine the irwentory cost ising (a) the first in, first out (Fifo) method; (b) the last in, first-out (GIFO) method; and (c) the wighted areage cost method (Round per unit cost to two decimal places and your final answer to the nearest whole dollar)..

1. PersonData and CustomerData Classes Design a class named PersonData with the following
member variables: - 1 astName - firstName - address - city - state - zip - phone Write the
appropriate accessor and mutator functions for these member variables. Next, design a class
named CustomerData, which is derived from the PersonData class. The CustomerData class
should have the following member variables: - customerNumber - maitingList The
customerNumber variable will be used to hold a unique integer for each customer. The
mailingList variable should be a boo1. It will be set to true if the customer wishes to be on a
mailing list, or fal se if the customer does not wish to be on a mailing list. Write appropriate
accessor and mutator functions for these member variables. Demonstrate an object of the
CustomerData class in a simple program.