Joanna ran a mile in physical education class. after resting for one hour, her heart rate was 60 beats per minute. if her heart rate decreased by 2/5 what was her heart rate immediataly after ahe ran the mile?

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

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?

Write the point-slope form of an equation of the line through the points (-2, -3) and (-7, 4).