Answers:
1) Time it takes to travel to the moon
Velocity
is defined as:

Where:
is the average distance from Earth to the Moon
is the velocity of the spacecraft
the time
Isolating
:


This is the time in hours
2) Time in days
A day is equivalent to 24 hours:

Hence:

This is the time in days
3) Time in months
A month is equivalent to 30.4 days:

Hence:

This is the time in months