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each family was asked to bring 4 baseballs and 3 whiffle balls to game day. the equation below represents the total number of game balls brought by each family.
b=4+3
which equation would represent the total number of game balls brought by 7 families?
a. b = ( 7. 4) +3
b. b = 7 + 4 +3
c. b = 7 . (4 + 3)
d. b = 4 + 3 . 7

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?