Answer:
 a) 87.7
 b) g(t) = f(t)/2.2
Step-by-step explanation:
The number of pounds is 2.2 times the number of kilograms, so we have ...
 f(t) = 2.2·g(t)
a) On day 37, Chase's weight in kg is ...
 f(37) = 2.2g(37)
 193 = 2.2g(37)
 g(37) = 193/2.2
 g(37) ≈ 87.7
__
b) Rearranging the equation we started with, we have ...
 g(t) = f(t)/2.2