Here's some free points because today's my birthday

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row

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

B. two events are dependent if the occurrence of one event changes to occurrence of the second event. true or false