At first, it was thought that the Earth's atmosphere consisted of hydrogen compounds—methane, ammonia and water vapour—and that life began under such reducing conditions, which are conducive to the formation of organic molecules
Answer: idk if this is what you want but there are currently about 7.7 billion people on earth rn
Solution:
1. (37 + 12t) - 37 = (85) - 37
2. 12t/12 = 48/12
3. <u>t = 4</u>
