How much should be deposited in an account paying 9% interest, compounded quarterly, in order to have a balance of $ 9,000 after 18 years and 9 months? Enter the answer in dollars and cents, and round to the nearest cent, if needed.

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?