Caleb has a mask collection of 400 masks. He keeps 260 of the masks on his wall. What percentage of Caleb's mask collection does he keep on his wall?

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?