A spelunkers starts his journey at -500 feet and ends up at -100 feet. What is his change in elevation?

With both problems. a.s.a.p directions on photo ^

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?

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.