Answer:
10. 31.14
10/31+14
Step-by-step explanation:
Answer: 37 hours and 30 minutes
Step-by-step explanation: divide 2,250 by 60=37.5
Answer:
this is too old
Step-by-step explanation:
Answer:
69
Step-by-step explanation:
167-152=15
This is the number of people that only brought pens
167-84=83
This is the number of people that only brought pencils.
167-15-83=69
This is the number of people that brought both pencils and pens.