Respuesta :

Answer:

B. 59°

Step-by-step explanation:

<AOC=77°

<BOC=?

THEREFORE,

<AOC=<BOC+<AOB

77° =7x+17+3x

77°-17=7x+3x

60=10x

x=60/10

x=6°

Now,

<BOC=7x+17

=7*6+17

=42+17

=59