Mai has a jar of quarters and dimes. She takes at least 10 coins out of the jar and has less than $2.00. Write a system of inequalities that represents the number of quarters, , and the number of dimes, , that Mai could have. Is it possible that Mai has each of the following combinations of coins? If so, explain or show how you know.

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?