I think it would be 35 combinations but I may be wrong
Given:
Total number of problems = 24
Michael completed
of his homework in
of an hour.
To find:
What fraction of his homework would he complete in one hour.
Solution:
We have,
Part of work done in
of an hour 
Part of work done in an hour 

Therefore, he complete
of his homework in 1 hour. Hence, all options are incorrect.
Answer:
B
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Probably a C-, but it depends on how many other grades are in the gradebook and the exact percentage of your grade.