Volume = (19)^3 =6859 mm^3 = 6.859 cm^3

Mass = d x V = 8.25 x 6.859 = 56.587 g

Is this the mass that you got?

Now what you need to do is use mass x specific heat x change in temp for the brass and set it equal to the opposite of the mass X specific heat x change in temp for the water. This is how you indicate that the heat lost by the brass is equal to the heat gained by the water. Your change in temperature is going to be (final temperature) - (initial temperature). I'll indicate final temp as X, because that is what we're trying to solve for. So...

56.587 x 0.362 ( x - 95.0 ) = - 20.0 x 4.186 ( x - 22.0 )

It's all algebra now. Solve for X. Remember your answer should be POSITIVE, because you're looking at the final temp of the water, NOT the brass. Hope that helped.