If you move from -134 feet to + 29 feet you have actually moved a distance of 134+29 feet = 163 feet. In this case all the signs tell you are your position relative to sea level.
we know the blue and white paints are on a 1.5 : 5 ratio, thus, if we have a total of 16.25 gallons of paint to be split along that ratio, we can simply divide 16.25 by (1.5+5) and distribute accordingly.
