Post given vertices or picture of question
Answer is n= -1 Explanation first thing you need to do is to divide the 7 and 21 to get n+4=3. After that move the constant 4 and switch it with 3. N+3=4. Then calculate n+3=4 to get n= -1
Im not really sure but i thinki think it is
I think it's 12x.
I'm not a 100% sure though, but I hope this helps. =^D
Answer:
96°
Step-by-step explanation:
Opposite angles in a parallelogram are equal.