Answer:
Precambrian period
Step-by-step explanation:
Since the Great oxidation period = 2.4 Billion years ago era = Precambrian period.
Micro-fossils attributed to cyanobacteria are abundant during the Proterozoic that came later 2,5 billion years ago and ended 540 million years ago,
Answer:
try find apps about answering this question im not sure about this one :)
Step-by-step explanation:
If we want to calculate the full prize we need to calculate how much the tax was:
420* 17

%=420*

=420*

=21*

=73.5
so this is how much the tax was.
and the full prize is the cost of the ring and the tax: 420+73.5=493.5
so that's how much the buyer will pay
Answer:
-64123.2679492
Step-by-step explanation:
I'm sorry if this is wrong!