"The absolute value of a number" just means how far a number is from 0. This means that any negative numbers inside absolute value lines are just the positive form of that number. Think of it this way: -15 is 15 away from 0, so the absolute value of -15 is 15. If you have a positive number inside the absolute value lines, it stays the same. The number 13 is 13 away from 0, so the absolute value of 13 is just 13. Now that you know how to find the absolute value of a number, all you have to do is find the absolute values of the listed numbers. The simplified forms of the listed numbers should all be positive numbers. The last thing to do is easy! Just put the numbers you got in order from greatest to least.
Part B. f(x) = 90 + 0.11x f(300) = 90 + 0.11(300) = 90 + 33 = $123 f(300) represents the total cost, in dollars, for renting a car for a week and driving it for 300 miles.
