
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
Jenna traveled a total of 150 miles in 2 hours. During the first 40 minutes, her average speed was 50 mph, and during the next 40 minutes, her speed increased to 70 mph. What was Jenna's average speed, in mph, during the last 40 minutes?
A) 95 mph
B) 100 mph
C) 105 mph
D) 110 mph

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