-28xy/4
-7xy
Therefore, the first answer is correct.
Hope this helps!
185 is the sum of the first part if the question
Use distance formula
=√(3-3)^2 +(-4-4)^2
=√64
=8
So let's say he was earring x before his raise. That means that:
x times 1.09 = 654 (1.09 represents 100% (this is the 1.0) of his original salary plus 9% (this is the .09) his raise.
So,
1.09x = 654; now divide both sides by 1.09 to isolate and solve for x, and you get x = $600.
