
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
A city's power department charges residential electricity usage on a monthly basis according to the following standards:
① For usage not exceeding 100 units, the cost per unit is 0.5 yuan; ② For usage exceeding 100 units, the cost per unit for the excess is 0.8 yuan.
(1) Xiaoming's family used 130 units of electricity in January and should pay \_\_\_\_\_\_ yuan;
(2) Xiaoming's family paid 90 yuan for electricity in February. How many units of electricity did they consume?

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