28. [Area / Volume] * Find the area of the shaded shape.
[Round to the nearest whole number.]
sq. units

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.

You would most likely see a bunch of deserts