Question

-3 m . 4. n . n write an exponents

Answer 1

-3m would stay the same, but you can put a ^1 on it
Since there are 2 n terms for 4, you would do ^2
so you would have -3m^1 4n^2

Answer 2

im not sure how to do the problem

Answer 3

Well you just have to see how many of each term there is, and add the exponent