On the day of the field trip, each teacher must call the parents of any student who has not returned a permission slip. all of mr. gomez’s students returned their permission slips, so he did not have to make any calls. mrs. hooper and mr. anderson had to call a total of eight parents. mrs. hooper needed to call two more students than mr. anderson which set of equations correctly describes the phone calls made
h=mrs hooper
a=mr anderson

a. h+a=8 ; h=a+2
b. h+a=8 ; a=h+2
c. h+a=2 ; h=a+8
d. h+a=2 ; a=h+8

Which multiplicative property is being illustrated below? (type commutative, associative, or identity) 5 × 2 × 4 = 2 × 5 × 4

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?

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?