Rick Mendez bought stock for $5,000, using $2,500 of his own money and $2,500 borrowed from the broker. One month later, the stock is sold for $5,650. Interest owed to the broker is $30; brokerage commissions to buy and sell the stock totaled $300. Rates of return: %

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?