Answer:
This is kind of late, but I hope I could help maybe for a later assignment or assesment.
The estimates of y have become increasingly more precise, with some of the earlier ones having a margin of error of more than 0.8
None of the estimates support newton's theory that y=0
Most of the estimate support Einstein, or at least have a margin of error that accounts for einstien.
If you move the decimal point the same number of places in the dividend and the divisor, you are multiplying them both by the same power of 10. That does not change the quotient.
It would be X=3 because 3 multiplied by 1 equals 3 and you get 3 over 21. that simplifies to 1 over 7.