A rectangular prism with a volume of 6 cubic units is filled with cubes with side lengths 1/2 unit. How many 1/2 unit cubes does it take to fill the prism

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

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.

Having a hard time understanding this question (see attachment).