Answer:
18
A whole note gets four beats, and a half beat gets two and so on. Using this information, the answer would be 18.
Message me if you still need help! :)
I believe the answer is d) Unity. Since unity is what makes all elements in an artwork combine together well-harmoniously, I would think that'd be the most significant principle of a design according to photography.
The expression would look like 2x=5 and your value for x is 5/2 or 2.5
