Type the missing number to complete the proportion 91 minutes for 39 songs = _minutes for 9 songs

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.

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Patty made a name tag in the shape of a parallelogram. reilly made a rectangular name tag with the same base and height. explain how the areas of the name tags compare.