A new telephone Company has the following tariff structure for long-distance calls: There is a 50% discount between 18:00 and 07:59. All calls starting at or after 8:00 in the morning, but before 18:00 in the evening, will be charged in full. All calls are subject to a 4% tax. The usual fee for a call is $0.50 per minute. Dec. all calls exceeding 60 minutes receive a 20% discount on the fee (after deducting other discounts, before taxes are added). Write a complete set of Black Box test cases (equivalence classes and limit value) for the test of the program that solves the above problem. Create a table as we did in the lesson.. you can make a table for conversations that take 50 minutes, 120 minutes, 30 seconds, and 5 hours. In addition, prepare 12 valid and 4 invalid cases October