A mans income is increased by 1200 and at same time the rate of tax to be paid is reduced from 12% to 10% He now pays the same amount of tax as before the mans increased income is

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 inequality comparing two of the expressions is true when 0.7 < x < 0.9

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.