a stadium with 80 rows has 20 seats in the first rows,30 in the second, and so on. how many total seats are in the stadium​

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.

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?