What is the distance between (4, 7) and (-3, 9)

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

How do you determine whether a relationship represented as as graph is linear or nonlinear

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?