I need number help with number 15. Can anybody help me out?? It’s the one that starts off with “The speed of light”

How many square centimeters of wrapping paper will be used to wrap the shoe box?

The table showed price paid per concert ticket on a popular online auction site. what was the average price paid per ticket

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?