Build a Formatted Description

The interface IProduct declares string Describe(). The Book class stores a title and a price. Complete Describe() so it returns the title, then  costs $, then the price. Do NOT write a Main method.

For a Book with title C# Basics and price 15 the program prints:
C# Basics costs $15

Expected Output:

C# Basics costs $15

Topics:

Interfaces

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