1. **State the problem:** We need to order the numbers 20.85, -20.04, 20.75, and 20 from greatest to least. 2. **Recall the rule:** When ordering numbers from greatest to least, the number with the highest value comes first, and the smallest value comes last. 3. **Compare the numbers:** - 20.85 is greater than 20.75 because 0.85 > 0.75. - 20.75 is greater than 20. - 20 is greater than -20.04 because positive numbers are always greater than negative numbers. 4. **Order the numbers:** $$20.85 > 20.75 > 20 > -20.04$$ 5. **Final answer:** The numbers in order from greatest to least are 20.85, 20.75, 20, -20.04.