Answer:
20%
28 2/3%
14 1/3%
14 1/3%
Explanation:
we know the whole is 30, so we make fractions out of the table and simplify
6/30=1/5
8/30=4/15
12/30=2/5
4/30=2/15
1/5=0.2, so the percent is 20%
4/15=28 2/3%
2/15=0.143333333 forever, so 14 1/3%
4/30=same as the second to last, 14 1/3%