Enter a numerical expression that represents the sum of u squared and 9, multiplied by eleven

 11(u²  + 9)

Explanation:

The problem is to write a numerical expression for the statement given;

       sum of u squared and 9, multiplied by eleven

Variable given  = u;

             u squared = u²

         Sum;

                     u²  + 9

    multiplied by 11;

                     11(u²  + 9)

answer; i believe that the correct answer is (a) potassium(k)