David drew this diagram of a picture frame he is going to make. Each square represents one square inch.
What is the area of the picture frame? The picture
frame is represented by the blue squares.
O A 12 in
16-
14-
12-
10
8-
6-
4-
OB 40 in?
oC 120 in?
OD 48 in?
2-
0 2 4 6 8 10 12 14 16 18

Arandom number generator is used to model the patterns of animals in the wild this type of study is called

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?

It says factor each expression completely 8y+48