Number of
people
30
data
32
group
mr. vorel's class
ms. cahill's class
mrs. winter's class
miss meyer's class
teachers and chaperones
groups of 8 people can see a special
exhibit on space travel. how many
groups will be needed so everyone can
see the exhibit?

7x+8y=-18, 4x-9y=-3 solve the system of equations

The length of each stair is 11 inches. what is the rise, r, for each stair? round to the nearest inch. 2 inches 7 inches 17 inches 24 inches

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?