25 points !
identify the horizontal middle of a sample period for the function: f(t) = 4sec(3t - 6x)
a: x = 5 pi / 2
b: x = pi
c: x = 3 + pi
d: x = 4 pi / 3

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?