Peter owns a hotel. He has found that when he charges $119 for a night’s stay, the average occupancy is 372 people. In addition, Peter has found that with every $15 increase in the nightly cost the hotel occupancy decreases by an average of 25. Part A
Write an expression to represent the nightly cost with x $15 price increases.

$119 + $15x

Part B
Write an expression to represent the average occupancy with x $15 price increases.

Please help, thank you. :)

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Find the difference (8ab+a+2) - (3ab+6)

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?