If 12 million baby boomers out of total of 78 million baby boomers have already retired what percentage of this group will retire in the next 20 years?

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.

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds.then use the distributive property and mental math to evaluate the expression.