20/20 equals 1/1 or a hundred percent of something.
20
a score is twenty:20
20
17 and 20 may
20
you should buy some maths books and do 20 mins every night or do some revision on maths.
20
A score is equal to 20.
20
20+5+0.1+0.06
write about any 20 mathematicians
Types of normalisationFirst Normal FormSecond Normal FormThird Normal FormBCNFStudents Age Subject Anne 20 Biology, Maths flora 23 Maths devin 16 Maths