Answer:
48°
Step-by-step explanation:
In triangle CYZ, angles Y and C are complementary, so ...
(5x +22) + (12x) = 90
17x +22 = 90
17x = 68
x = 4
The angle of interest is 12x° , so has measure
12·4° = 48°
49 ÷ 100
= 0.49
0.49 x 100 = 49%
20 degrees
vertical angles are equal, so 5x-80=x
solve for x and you get 20
