What data type do we use to store numbers that will be used for calculations?

Numeric Data

Explanation:

Put simply, numeric data can contain only numbers (as well as associated operators), thus making it the most simple and easiest way to store data which can be calculated. It's not the best answer, but then it would be really long.

The integer data type is often used to hold information like transaction IDs and store numbers

Explanation:

the today function returns a valid value without any arguments.

the today function returns the current date based on the computer's date setting and formatted as a date. today takes no parameters, but requires that you use empty parentheses