30x-40+12=572
30x=600
x=20
Answer:
12
Step-by-step explanation:
Because this is a 45 angle triangle we can assume the other side is also a 45 angle. Which means that CD=AD.

Answer:
Answer is B 16
Step-by-step explanation:
Done
Well, I am not exactly sure if this is what your asking but one foot is twelve times the size of a foot.
Answer:
X+6+x=3x-3
2x+6=3x-3
6+3=3x-2x
9=x
Step-by-step explanation: