Your family drives to the mountains one weekend. You drive 55miles for the first hour and the next 3 hours you travel a distance of 180miles. What's your average speed for the 4 hours ?

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k