Louise’s family went on vacation to disney world. their vacation cost $5,990. sophia’s family went on vacation to niagara falls. their vacation cost $4,720. both families budgeted about $5,000 for their vacation. whose family stayed closer to the budget? round to the nearest thousand

The sum of two numbers is 86, and their difference is 20. find the two numbers

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?

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?