There are 9 pens in a pack. ms ochoa buys 9 packs. after giving her student some pens she has 27 pens left. how many pens did she give away?

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

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?

Which graph depicts the path of a projectile