(a) Use the graph to calculate the average rate of change in sales of services between 2004 and 2007. million per year Interpret the result. Between 2004 and 2007, sales of service ---Select--- by an average of $ (b) Calculate the percentage change in sales between 2007 and 2008. (Round your answer to three decimal places.) % Interpret the result. Between 2007 and 2008, sales of service ---Select---✓ by (c) Calculate the change in sales between 2004 and 2008. $ million million per year. %.

The cost �(�), where � is the number of miles driven, of renting a car for a day is $41 plus $1.75 per mile.What is the slope of the linear function and its units?        What is the �-intercept and its units?      What is the linear function, �(�)?

A car initially sold for $23,999. Its class life is 12 years, and the car depreciates by $750 each year. Express this as a linear function. Find the salvage value. Then, find the value after six years.

Computer-Aided Drawing PERFORMANC TAS A house designer uses computer-aided drawings to illustrate new houses. She likes to show her drawings to clients on a large screen. She often uses the zoom-in function to enlarge the drawings so that clients can see certain features better. Each click of the zoom-in button results in a 10 percent increase in the size of a drawing. (a) On a certain drawing of a house, the width of the front door is 3 inches on screen, using the default settings. Make a table of values to show the width of the door on screen after each of the first four clicks of the zoom-in button. These values should be accurate to the thousandths place, (b) Write an algebraic rule for the function that will give the display size of the door for any number of clicks.