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Help, please show work.

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

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?