Answer:
Step-by-step explanation:
for -9x+2>18 its x<-16/9 and for 13x+15≤-4 its x<-19/13
x=60 degrees
Since all of the sides are the same (we know that because of the dash marks on the sides) you take the number that all the angles of triangles added up equals which is 180 and divide by 3 which is 60
