Ihave to make an algebraic expression or equation for this and explain what the variable !

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?

What is the circumference of a circle with an area of 50.24 cm²?

Find the distance between the pair of points a(-1,8) and b(-8,4)