An exterior angle of a triangle equals minus the adjacent interior angle. 90 270 180 360

How can you find the mean absolute deviation (mad) for this set of data?

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?

Which statement accurately explains whether a reflection over the y axis and a 270° counterclockwise rotation would map figure acb onto itself?