Arsenia has 120 movie posters and 100 band posters. she plans to sell 24 movie posters. she says that if she also sells 24 of the band posters, the ratio of the movie to band posters will be the same. is that true? why or why not?

Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

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.

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.