
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Sarah's tablet has a battery that lasts for 36 hours if it is on but not actively used, and only lasts for 6 hours if she is actively using it for gaming. After the last charge, the tablet has been on for 15 hours, during which she used it for gaming for 90 minutes. Additionally, every hour that the tablet is charged while off, it gains 2 extra hours of battery life when not in use and 30 extra minutes when in use. If Sarah charges her tablet for 3 hours and then does not use it for gaming but leaves it on, how many more hours will the battery last?
A) 18 hours
B) 19 hours
C) 19.5 hours
D) 20 hours
E) 21 hours

Present the answer in LaTex format: \boxed{Your answer}
user