Joey owns stock in a high-tech firm. Each share is currently valued at $4 per share, which is 50% less than Joey paid to purchase it. What did Joey pay per share?

For what values of x is x2 + 2x = 24 true?

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?

How much is $1200 worth at the end of1 year,if the interest rate is 5.5% is compounded quarterly.