A certain South Jersey High School is putting on a play. Tickets for the play are $3.00 for students and 4.00 for everyone else. The school sold 250 tickets and collected $950.00 in tickets sales. How many $3.00
tickets were sold?
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Solve the inequality, then identify the graph of the solution. 2x – 1 > x + 2

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms