Sara is multiplying two factors, one with one decimal place and one with two decimal places. she says that the product could have two decimal places. is she correct?

She is incorrect, the product will have 3 decimal places.

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.

Arhombus is a quadrilateral.