The best way to shoot a picture would be to have it center screen. You can look through your viewer as well as long as your subject is the main focus in the middle.
The amount of vinegar is the amount of mayo divided by 2. therefore the answer is 8 teaspoons of vinegar.
If it were the other way around and you knew the amount of vinegar and needed to find out the amount of mayo, you would multiply the vinegar by 2
Answer:
What if I DON'T help you find this mysterious person?
He undertook a study of it :)