Answer:
10= 275
-------------
11=
a 6
b 4
12= 35
Step-by-step explanation:
Answer: 25. -17, -14, -3, 0, 2, 7
26. -26, -21, -13, -1, 5
27. -17, -16, -11, -4, 2, 9
28. -75, -63, -60, -52, 12, 70
I think you forgot part of the question
50 degrees and 40 degrees
complimentary = add up to 90 degrees
5:4:9
50:40:90