Answers

2014-07-10T18:15:43+08:00
15% of 20% is 3 because when you multiply .15 to 20 it will be 3.
So the probability that the girl with red hair and wears glasses will be selected is 3%
1 1 1
2014-07-10T18:18:54+08:00
If girls wearing eyeglasses are 20%, while girls with red hair are 15% you need to convert
them into fractions or decimals first, or you can also use percentage if you knew it, but I 
highly recommend the usage of decimals to avoid errors.
This is the solution:
20% = 0.2 and 15% = 0.15
0.2×0.15 = 0.03 or move 0.03 to 2 decimal places to the left to become percent = 3% chance 
of choosing a girl with eyeglasses and red hair.
1 5 1