This is definitely false. Gymnosperms do use seeds but are exposed like the pine cones of pines. Angiosperms still have seeds, however, they flower or fruit (which can are seeds).
Answer:
30% or 3/10
Explanation:
6 out of 20 is 30%
as a fraction 30% is 3/10
P.S. you put your question under History and not Math.
Because that’s just the way it is