Arithmetic on Polynomial Expressions

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

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?

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?