how many ways are there to order the numbers 1 through 20 in a row so that the first number is 1, the last number is 20, and each pair of consecutive numbers differ by at most 2

Astudent simplified a rational expression as shown.

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?

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?