I think the answer is principles of design.
Answer: The design of a work of art influences the content created within the piece and felt by the observer.
Explanation:
Answer:
x = 15
Explanation:
The angle is 90 degrees, so 3x qnd 4x - 15 combined would equal 90.
Combining like terms would turn the equation into 7x-15 = 90.
Add 15: 7x = 105
Divide 105 by 7, and x = 15