Can somebody please help me out with #7 8 and 9. And if you just do one that’s cool too. Thank you! Btw it’s geometry.

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

What is negative 3/9 times negative 2/8 ?

Seattle, washington is known for being rainy. one day last month, 8 inches of rain fell in 1 1/2 hours. what us the rate of the rainfall expressed in ft per plzzz write a proportion i will give you 100 points