Rachel is placing playing cards on a table by following these steps. step 1: first she places one card in the middle of the table. step 2: next she adds one more card directly to the left, to the right, above, and below the first card. step 3: next she adds one more card directly to the left, to the right, above, and below the cards that were already on the table. the cards form the pattern shown.

How many $20 bills do you need to have to make $280

Which of the following represents the range of the graph of f(x) below

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?