Kelly, jess, sam and evan are running for student council. show all the ways that a president and vice president can be elected.

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

Combine like terms to make a simpler expression 3z+z

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?