Write a function C that represent the cost of buying x face shield if a face shield cost ₱15.00. Compute the cost if you will buy 250 face shields. How much is the cost if the seller will give a...

Write a function C that represent the cost of buying x face shield if a face shield cost ₱15.00. Compute the cost if you will buy 250 face shields. How much is the cost if the seller will give a discount of 25% if you will buy at least 1000 face shield and you are planning to buy 5000 face shields. with solutions