During the summer, Samson averaged 9.4 hours of sleep per night. Now that school has started, he averages 8.2 hours. What is the percent decrease in his sleep per night?

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

What are the soultion(s) to the quadratic equation 40- x^2=0