Which primary source document would give you insight into how the great chicago fire affected working-class families? a.) a letter b.) a newspaper account c.) an essay d.) an immigrant newspaper

Find the maximum value of p= 4x + 5y subject to the following constraints :

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?

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?