Copy of Double Number Line: Percent of a Number

"Play" with the applet below and then answer the questions below the applet.
1. What is 30% of 40?[br]2. What is 60% of 90?[br]3. What is 50% of 250?[br]4. What is 3% of 12?[br]5. If you know what 10% of 60 is, how can you quickly find 30% of 60?[br]6. If you know what 10% of 80 is, how can you quickly find 5% of 80?[br]7. What does "percent" actually mean?
– DAVID A DIEHL, David Cox

Information: Copy of Double Number Line: Percent of a Number