1. **State the problem:** We need to find the range of the number of stickers each friend has in their collection. 2. **Recall the formula for range:** $$\text{Range} = \text{Maximum value} - \text{Minimum value}$$ 3. **Identify the data values:** - Lila: 7 stickers - Farid: 5 stickers - Tristan: 6 stickers - Brett: 10 stickers - Anita: 7 stickers 4. **Find the maximum and minimum values:** - Maximum value = 10 (Brett) - Minimum value = 5 (Farid) 5. **Calculate the range:** $$\text{Range} = 10 - 5$$ 6. **Show intermediate step with cancellation:** $$\text{Range} = \cancel{10} - \cancel{5}$$ 7. **Simplify:** $$\text{Range} = 5$$ **Final answer:** The range of the sticker collections is 5.