D , because 28-9=21 and 21=x
Answer:
A) 4x+8
B) 8x-16
C) 8x+12
D) 6x+6y+6z
Step-by-step explanation:
multiple the number outside of the parentheses by each number or letter inside the parentheses
The formula for tan is opposite/adjacent.
This being said, 12/13 would equal approximately 0.923077.
Hope this helps. ^^
The answer to that would be D!
