Fred, norman, and dave own a total of 128 comic books. if dave owns 44 of them, what is the average
(arithmetic mean) number of comic books owned by fred and norman?
42

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b