Which expression would be easier to simplify if you used the commutative property to change the order of the numbers? A. 2/3 + (- 1/3 ) + 1/5

B. (-80) + 43 + (-120 )

C. 80 + 20 + ( -17 )

D. (–19 ) + (-10 ) + 7/8​

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

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?

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample