Emily can bike 14.2 miles. It takes her 3.2 hours to complete this distance. How fast is this speed if it was completed at a consistent rate? (Round to the nearest hundredth)

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 parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3