Parallel lines s and t are cut by a transversal r.

Which angles are corresponding angles?
3 and 7
1 and 7
4 and 6
1 and 8

Answer this question! 30 points and brainliest! only if you know the answer.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Which term best describes the association between variables a and b