Adance school has 54 students who learn salsa, and 23 of those students also learn ballet. there are 15 students who do not learn salsa but learn ballet, and 10 students do not learn either salsa or ballet. which table best shows the conditional relative frequency of rows for the data?

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 is he correct? explain why or why not?

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

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?