Santa's Little Helper knocked the glass, pickle, jar off the deli counter.
Do I add or remove the comma

Consider the quadratic equation ax^2+bx+5=0,where a, b and c are rational numbers and the quadratic has two distinct zeros.if one zero is irrational what is the other zero?

Yes or no ? a philanthropist is stingy and greedy.

An effective thesis statement will reflect . . 1) possible weaknesses in your own argument. 2) possible weaknesses in your opponent's argument. 3) the type of document--or genre--you plan to write. 4) your attitudes about aquatic mammals