Equation - Poem

From a Newspaper:

    I've had two major accomplishments in my life and am seeking a third.  The first was when I ran a marathon of more than 26 miles.  The second was passing a comprehensive examination to become certified as an assessor for the automobile industry quality system.  The third is to geta question published in your column.  Here is another effort at that:  Can you read this equation as a poem?

        - Bruce Mothes, Roswell, N.M.

    I give up!  The answer, which you sent sealed, appears below.

A dozen, a gross and a score
   plus three times the square root of four;
divide it by seven
   plus five times eleven
equals nine to the square and not more.