Halp

Select the expression that is equivalent to (m^-4)(-3m^-6)(-m^7)

-1/3m^168
3m^168
-3/m^3
3/m^3

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

Where is the qeustion

Ithink your answer is c hope that