Question

Please help quick!!!!!!!!​

Answer 1

It's the last one (-3m^-3n)

Step-by-step explanation: You can take this equation and divide it up into parts. To make this simple, make it...

-9/3 × m/m^4 × n²/n

m/m^4 is basically
`m^(1-4)`, which ends up being m^-3.

n²/n is basically
`n^(2-1)` which ends up being n^1, or just n.

Then simplify all parts of the equation so you are left with:

-3 × m^-3 × n

You are then left with the bottom answer.