Final answer:
The polynomial 8m^2n^4 is a bivariate polynomial of degree 6 with a leading coefficient of 8.
Step-by-step explanation:
The polynomial 8m2n4 can be classified as a bivariate polynomial because it contains two variables, m and n, raised to integer powers. The degree of this polynomial is 6 since the sum of the exponents of the variables is 2 + 4 = 6. To find the leading coefficient, we look at the coefficient of the term with the highest degree. In this case, the leading coefficient is 8.