What is the mean of this set of numbers?
0.810.81
0.88
0.82
0.90
0.90
0.84
0.84
0.91
0.94
0.86
0.86
0.86
0.88
0.87
0.89
0.91
0.86
0.87
0.93
0.88
0.83
0.950.95
0.87
0.93
0.91
0.85
0.91
0.91
0.86
0.89
0.87
0.840.84
0.88
0.88
0.89
0.790.79
0.82
0.83
0.90
0.88
0.84
0.93
0.81
0.90
0.88
0.92
0.85
0.84
0.84
0.86

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

Need on this geometry question. explain how you did it.

Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.