t=D/r
Divide r by both sides to get t by itself.

and also

now, we know that V varies directly to T and inversely to P simultaneously
thus

so
Answer:
3x+12
Step-by-step explanation:
distribute
63 people should be able to fit in because 7 times 9 is 63.
If I'm wrong, contact me.
Answer:
2
Step-by-step explanation: