Answer: 1. 16%
2. increase of 2
3. decrease of 33.33%
Explanation:
1. To find 20% of 80%, you can multiply 80 by 0.20. This gives you 16.
2. If you want to increase 8 to 10, you would add 2. So, the increase is 2.
3. To calculate the percent of change from 15 to 10, you need to find the difference between the two numbers, which is 15 - 10 = 5. Then, you divide the difference by the original number (15) and multiply by 100 to get the percent. In this case, the percent of change is (5/15) * 100 = 33.33% decrease.
Hope that clarifies it for you! Let me know if you have any more questions.