Y=3 because it is horizantal line that is between 0 and 6
400. Just add a zero when you're dealing with tens
11. Similar 1/2
12. Similar 2
13. no
14. no
15. No, they are not congruent because rectangles do not have equal sides, so the length of one triangle could be longer than the other and the width ozone can be shorter than the other.
16. Yes
