Answer:
BCF and GFC
EFC and DCF
because they are alternate
9/11 is rounded to 1. It rounds up because 9 is higher than 5, which is the middle of 11.
1/3 and 33.3 percent are nearly equivalent. 1/3 is actually equal to 33.33333333% (with never ending 3s at the end), so 1/3 is slightly greater than 33.3% (which has only one 3 after the decimal place).
After calculating for ten minutes, I got 1. B and 2. D