Solve the given pair of linear equations by reducing to a pair of linear equations 8/x+y-1/x-y=1/2,4/x+y +1/x-y =1

Which rational number could be graphed between -4 and -5

Explain step-by-step how to simplify -5(2x – 3y + 6z – 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?