30 Points!! Photography
**Please answer descriptively for the most part**

**Subject: Photography**

Why do various image formats and sizes exist and how do you determine and set what format or size to use for a specific photograph? Explain the various image formats and sizes and provide an example of a photograph that you want to take and what image format and size you would use.

Assume the existence of a bankaccount class. define a derived class, savingsaccount that contains two instance variables: the first a double, named interestrate, and the second an integer named interesttype. the value of the interesttype variable can be 1 for simple interest and 2 for compound interest. there is also a constructor that accepts two parameters: a double that is used to initialize the interestrate variable, and a string that you may assume will contain either "simple", or "compound", and which should be used to initialize the interesttype variable appropriately. there should also be a pair of functions getinterestrate and getinteresttype that return the values of the corresponding data members (as double and int respectively).

What is the most popular genre of video games?

How do we use the sumif formula (when dealing with different formats) ?