Should I use "make" or "makes" in the following statement?

Should I use make or makes in the following statement:

Please explain why your experience and qualifications makes you the best candidate for this position

"Make" should be used here, but the reason is not simply because there is a multiple subject. The rule for subject-verb agreement when there is a multiple subject is this:

If the multiple subjects are joined by and, then the verb is plural.
If the multiple subjects are joined by or/nor then the verb is singular.

Examples:

The orange, banana, and the jar always sit on the shelf when it rains.
In this scenario, either Job, Barney, or Rachel runs to Mrs. Norris and gives her a piece of fish.

Thus, in your case, "make" is used because your multiple subject is joined by "and".

You should use 'make' because the opening phrase contains a list of things (experience and qualifications).

Please explain why [list of things] make you the best candidate...

As opposed to:

Please explain why [one thing] makes you the best candidate...