On a test that has a normal distribution, a score of 35 falls three standard deviations below the mean, and a score of 47 falls one standard deviation above the mean.
Determine the mean of this test.

Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?

Multiply sixth of sixty six by a half of ten show step by step method

Derek purchased a new gym membership. it costs him seven dollars a month plus two dollars for every time that he visits the gym. he wants to spend less than 25 dollars a month to visit the gym. write an inequality that models the situation using the variable v for the number of visits per month. also find the maximum number of visits he can make to the gym and still keep his cost below 25 dollars a month.