What is -0.9 if i turn it into a fraction in simplist form?

0.1 is the same as 1/10. Therefore, 9 x 0.1 = 9 x 1/10 = 9/10.
Since it is negative, the answer is -9/10.

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.