As Earth cooled, an atmosphere formed mainly from gases spewed from volcanoes. It included hydrogen sulfide, methane, and ten to 200 times as much carbon dioxide as today's atmosphere.
Answer:
The value of a is 150 and b is 4822.
Explanation:
First, you have to expand to remove brackets :


Next, you have to simplify :


Next, you have to compare it :



What grade are u in ? ,are you okay?
The answer is A. Protons.