|4w+1>11 solve 4w+1>11 and 4w+1<-11 minus 1 both sides 4w>10 and 4w<-12 divide both sides by 4 w>5/2 and w<-3 graph the points -3 and 2.5 shade outside not including
2. union means include all common to both so 2. 1,2,3,4,6,8,9 3. 1,2,3,4,5,7,10 4. interseciton so only ones common to both, so 4 5. null set (empty)
