Katherine buys a bag of chips for $2 and some boxes of cookies for $3 each. She did not spend more than $8. Which inequality could be used to find x, the number of boxes of cookies she bought?​

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5

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 graph of a curve that passes the vertical line test is a: