5 left! Help please! So close to being done! a. 75. b. 66 c. 122 d. 98. thank you

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?

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?