Answer:
Explanation:
1) let the number of students be 'x'
One ninth of 'x' :

28 more than one-ninth of ' x' :

2) Let the number of students 'x'
Four-ninths of 'x' =

34 fewer than four-ninths of 'x' =

3) Let the number of students 'x'
One-ninths of 'x' =

21 more than one-ninth of 'x' =
