Okay akilali3845 come get your brainliest

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.

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

We just started the introduction into circles and i have no idea how to do this.