Suppose that the salinity S of ocean water at a given depth d is modeled by the equation S(d) = 28.7 1.3 log (d 1), where S is measured in grams salt per kilogram water and d is measured in meters. What is the salinity when the depth is 37 m? Round your answer to the nearest hundredth.
A.
30.75 g salt/kg water
B.
-26.65 g salt/kg water
C.
44.04 g salt/kg water
D.
46.64 g salt/kg water
