The experiment of a sample "Core" for Oil-Water Capillary Pressure gives the following results:

Oil/Water Pc (psia)	0	4.4	5.3	5.6	10.5	15.7	35.0
Sw (%)	100	100	90.1	82.4	43.7	32.2	29.8

The sample was taken from 100 ft above WOC (water oil contact),

Known data: w = 64 lbs/ft3 and o = 45 lbs/ft3), Pc = h (w - o)/144

Question:

1. How many Sw(Water Saturation) at that height?
2. And if the thickness of the oil bearing from peak (Crest) to WOC is 175 ft, what is Sw of the interval?