Answer:
24°
Explanation:
Arc FG measures 72°, so that is the value of 3x+3:
3x +3 = 72°
x +1 = 24°
x +2 = 25° = mArc RZ
Then angle I is half the difference of arcs FG and RZ. It will be ...
∠I = (72° -25°)/2 = 47°/2 = 23.5°
The closest answer value is 24°.