The ratio of red tiles in a bag is 4: 7. if the bag contains 16 red tiles, how many blue tiles does it contain

Maria walks a round trip of 0.75 mile to school every day. how many miles will she walk in 4.5 days

Which of the following contains a variable?

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?