13. Write an inequality for the following
situation:
The bus can hold no more
than 60 students.

14. Write an inequality
for the following
situation:
Students should read at
least 30 minutes a
night.

15. Write an inequality
for the following
situation:
Each student should sell at
least 3 plants for the
fundraiser.

16. Write an inequality
for the following
situation:
Please pack no more
than one suitcase.