To write 1.65 × 102 in standard notation, move the decimal point two places to the left, true or false?

False. If you want to make 1.65 × 10to the power of 2 you would move it right two spots. Now if it was 1.65×10-2 then you would move it to the left.

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.