How do the expression 4(3 + x) and (3 + 3 + 3 + 3) +(x + x + x + x) compare to one another

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.