This circle is centered at the origin, and the length of its radius is 4. What is the equation of the circle?

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2