Abook club charges a membership fee of $20 and then $12 for each book purchased. write a function to represent the change, y, of membership in the club based on the number of books purchased, x.

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?

Aline has a slope of negative 1/4 the past two points -5/4 and 1 what is the equation of the line