Elisa wants to treat her friends to a movie. Tickets cost $8 each and popcorn and drinks will cost $40. She can spend no more than $120. How many friends can she take? Choose the correct inequality statement below to represent the situation.

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables