Ryan and steven left the house the same time and heased in thw sane direction. they were racing to the park. after 50 minutes ryan was 4/1-10 miles from the park and steven was 18-10 miles from the park how much farther from the park is ryan than steven. show your work with an equation do i have to add or subtract

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?