Complete the chart to find the mean variance and standard deviation remember to use commas and round numbers to the nearest tenth

The rectangle on the right is the image of the rectangle on the left. what transformation would result in this image? reflection rotation translation dilation

Icould really use some with this question.

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.