What is the equation of the green line

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

Alexandra drove from michigan to colorado to visit her friend. the speed limit on the highway is 70 miles per hour. if alexandra's combined driving time for the trip was 14 hours how many miles did alejandra drive?