Is the percent of change from 85 to 64? round to the nearest percent

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?

Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction