When m is 0, the other 2 variables is 0 as well.
when m is 1, the other 2 variable is 20.
when m is 2, the other 2 variable is 40.
when m is 3, the other 2 variable is 60
when m is 4, the other 2 variable is 80.
Im not too sure what you write for the second column in the table, but I think you can just write 20 times the number, whatever m is.
There ya go, Hope, this helps
23 over 90 and if I got it wrong, sorry
Number 1 16 pound is the best
Both terms have a

in common, so we can pull it out. The factored form will be

times whatever is left after pulling it out.
In the first term, we will have just 8 left since everything else in the term is factored out.
The second term has a

left. Notice that both of these terms no longer have a negative sign since the negative was factored out.
The answer is