Answer:
m<CAO = 56°
Step-by-step explanation:
Same-side interior angles are supplementary to each other, so take their sum and set them equal to 180 and solve for x:
2x + 3x + 40 = 180
5x + 40 = 180
5x = 140
x = 28
Plug x=28 into angle CAO:
CAO = 2(28) = 56°
