
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
The graph shows the miles traveled by bikers Clara and David. After six hours, how many more miles has Clara biked than David? The graph shows Clara's progress as a straight line from (0,0) to (6,4.5) and David's progress as a straight line from (0,0) to (6,3.6). Assume that each coordinate unit in the horizontal axis represents one hour and in the vertical axis represents 15 miles.

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