Probability that the sample proportion p̂ for an srs of size n = 934 falls between 0.46 and 0.52?

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.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?