Answers, you must believe in theistic evolution (TE). You accept that the earth itself is roughly four-and-a-half billions years old.
That the earth is over 4 billion years old comes from physics. It does not depend on TE or any other form of evolutionary thinking.
I assume that you believe the six days (Yom) of creation were of an indeterminate amount of time, perhaps up to 750,000,000 million years each. The day-age theory.
I take the creation story to be story telling, myth making -- perhaps poetry.
It is not history. It should be trivially obvious from the writing style (genre) that it is not history.
On day three of creation God made the dry land to appear. In addition, He created the tree; grass; flowers; and, herbs on the same day. The life giving rays of the sun did not reach the earth until day four, which according to TE would have been 750,000,000 years later. Perhaps you should check into the necessity of photosynthesis.
Or perhaps you are the one who needs to think about photosynthesis. What you believe is clearly false. The creation story is mythology, not history.
Fundamentalism - the anti-American, anti-Christian branch of American Christianity