Write a python file called regex. py that defines several variables containing compiled regular expressions, as follows:

Acetylene is a gas which burns rapidly on its own, and is considered highly explosive. a) true b) false

If a client wants to make minor edits, what should he/she use?

When is a chart legend used a. all the time b. whenever you are comparing data that is the same c. whenever you are comparing multiple sets of data d. only for hand-drawn charts