M^3n^-6p^0 simplify expression use positive exponents

N^-6 should be written   n^(-6).  This is equivalent to    

 1

n^6

Also, p^0 is equivalent to 1.

Thus, 
                              m^3 (1)         m^3
M^3n^-6p^0   =   =
                                n^6              n^6

and this could be written in the alternative form (m / n^2)^3, or

          m
      ( )^3
         n^2

127 millimeters is the answer

The slope of the function is 0.5.