If seven is subtracted from six times a number, the result is 10

John makes $10.50 pers hour what expression represens how much he will make if he works h hours

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.

Factor this polynomial completely x^2-64