This work is faster rate than grading 36 assignments in 30 minutes because :
25 ÷ 20 = 1.25
1.25 hw assignment per minute
36 ÷ 30 = 1.2
1.2 hw assignments per minute
here is the answer its in the picture and it also has the solution in picture 2
It’s 6 i’m pretty sure, your welcome have a good day