In the given list of rational numbers, we are looking for numbers that are all greater than 1.8 x 10^(-1) or 0.18.
Let's evaluate each option:
A. 20%, 5, 0.19
- 20% can be written as 0.20 which is greater than 0.18.
- 5 is greater than 0.18.
- 0.19 is also greater than 0.18.
Thus, all numbers in option A are greater than 0.18.
B. 20%, 10, 0.15
- 20% = 0.20, which is greater than 0.18.
- 10 is also greater than 0.18.
- 0.15 is less than 0.18, so option B is not valid.
C. 2%, 0.2, 0.8
- 2% = 0.02, which is less than 0.18.
- 0.2 is greater than 0.18.
- 0.8 is greater than 0.18.
Only one number in option C is greater than 0.18, so it is not the correct answer.
D. 2%, 0.125, 0.9
- 2% = 0.02, less than 0.18.
- 0.125 is less than 0.18.
- 0.9 is greater than 0.18.
Again, only one number in option D is greater than 0.18, so it is also not the correct answer.
Therefore, the correct answer is:
A. 20%, 5, 0.19
All the numbers in option A are greater than 0.18, which makes it the only valid choice in this case.
