Can u pls help me? It's kinda important so if u see this just check it and see if u can answer PS:. I will mark u branliest if it's correct

Angle mno is s rotated 180 degrees counterclockwise about the origin to form angle m’n’o’. which statement shows the measure of angle m’n’o’?

Can someone me with this problem . show your work .

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?