Tony ran laps around a track to raise money for a hospital. tony raised $15 plus $1.50 per lap that he ran. he raised a total of $255. let x represent the number of laps tony ran. what expression completes the equation to determine the total number of laps tony ran? how many laps did tony run? enter your answers in the boxes.

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

What is the range for 31,39,29,34,37,24,36,33,34,28

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?