Let f = {(2,5), (-3,7), (0,6), (-9,0)} and g = {(0,-3), (2,6), (7,-9), (5,0)}
Which is not true?

A. (fog)(2) is not defined
B. (gof)(2) = 0
C. (fog)(5) = 6
D. (gof)(-3) = -9
E. None of them are correct

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?