Betsy and mary both got their hair cut on the same day. betsy gets her hair cut every 28 days, and mary gets her hair cut every 35 days. how many days will it be until they both get their hair cut on the same day again?

1. suppose that scores on a knowledge test are normally distributed with a mean of 71 and a standard deviation of 6. a. label the curve: show the mean and the value at each standard deviation: b. if angelica scored a 76 on the test, what is her z-score? (draw her score on the curve above and label) c. what percent of students did angelica score higher than? how can you tell? d. if 185 students took the test, how many students scored higher than angelica?