. Simplify: (2 x 2 + 6-10 ÷

2)​

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

I'm confused on this could anyone me and show me what i need to do to solve it.

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?