Answer:
11. The missing angle is 63
12. She got 92% of the questions correct.
Explanation:
11. First you need to add 49 plus 68 which is 117, then you subtract 117 from 180 and you will get 63.
12. First you multiply 23 times a hundred which is 2300, then you divide 2300 by 25 and your answer will be 92%