Find the distance between the two points in simplest radical form. Can someone help?with distance formula?

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

#7. m is the midpoint of pq, the diameter of the circle o is 13in. and rm = 4in. find pm find pq

Reading tests are compared for two students. sara got 98, 100, 65, 78, 98, 46, 100, 100, 45, and 50 on her reading test. lee got 97, 67, 89, 99, 100, 45, 79, 89, 58, and 67 on his reading test.