The term for this sequence is 2.
It's an easy pattern!..
The second term is two times two.
The third term is two times three and so on..
Answer : b=3
Hope this helps have a great day! :)
Answer:
65 degrees
Step-by-step explanation:
The angles will sum up to 360, just do 360 - all known angles
360 - 90 - 128 - 77 = 65