Models Salinity of Ocean Water to Depths of 1000 Meters

Multiple Choice

models salinity of ocean water to depths of 1000 meters at a certain latitude. x is the depth in meters and f(x) is in grams of salt per kilogram of seawater. Approximate the salinity (to the
Nearest hundredth) when the depth is 77 meters.

A) 31.67 g/kg
B) 56.83 g/kg
C) -27.13 g/kg
D) 54.43 g/kg