Answer:
A, 61.
Explanation:
(2x+24). If we sub in 61 for x, we get (2(61)+24). Follow order of operations.
2 times 61= 122. Add 24 and you get 146. We can know this is correct because we are given the other angle and it's degrees, whch is also 146 degrees. Therefore, the answer is A, 61.