Working together, melissa and jing can mow a lawn in 5 hours. it would take melissa 8 hours to do the job alone.

what is the value of r, the part of the lawn that jing could complete in 1 hour?

0.075
0.125
0.375
0.625

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

Which of the following is the inverse of y = 3∧x y = 1/3∧x y = ㏒3x y = (1/3) ∧x y = ㏒ 1/3∧x

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?