The wallace family had 100 relatives at their big dinner. of all the guests, 90 had french heritage, 80 had english heritage and 75 had native american heritage. at least how many had heritage from all three cultures?

china unilaterally claims the entire south china sea as sovereign territory, then builds artificial islands to bolster its claim. it suddenly activates an air defense identification zone over the east china sea, and threatens to down any aircraft that does not report its position. it builds roads into indian territory, then redraws the maps to show that it is actually chinese territory. the people's republic under president xi jinping is quickly becoming the bully of asia.