12.3182
54.2000000000 / 4.4000000 = 12.31818
58000000.00
542.8333
542 billion = 542,000,000,000
The Phanerozoic Eon was from 542 million years ago until Now.The Proterozoic Eno was from 2,500 to 542 million years ago.
About 542 mya ( million years ago ).
542 / 7 = 77.42857
20.8462
271
6.0222
0.0055
The eon that lasted from 2,500 to 542 million years ago was the Proterozoic Eon.
The answer is FALSE.