Yun was trying to factor
7
x
2
−
14
x
7x
2
−14x7, x, squared, minus, 14, x. He found that the greatest common factor of these terms was
7
x
7x7, x and made an area model:

7
x
2
7x
2

−
14
x
−14x
Width
Width
7
x
7x
What is the width of Yun's area model?
Width
=

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?