I need help with this one and l also answered the first one but i’m not sure for this three angles

Volume of cylinder with a radius of 8cm and height of 25 cm

What is the slope of the line? a. -5/2 b.2/5 c. 5/2 d.7/2

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?