Find each product -7/9 x 3/5

-27/45
-7/15
7/15
27/45

What does the sign of the slope tell you about a line?

X+y=-4 x-y=2 use elimination with adding and subtraction

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?