6. 9/11
First, we need to find the total number of marbles in the bag, so we can find what percentage of them are NOT blue.
4+5+6+2+5=22
4 of those marbles are blue. That means 18 of those marbles are NOT blue. This, the percentage of getting a marble that is not blue is 18/22. Simplify. 9/11
7. 5 times.
To solve, find 25% of 20.
You can easily do that by dividing 20 by 4.
The answer is 5.
8. 5
We are simply scaling down. Again, all we have to do is find 25% of 20. The answer is 5.
Hope this helps!
