Agroup of adults plus one child attend a movie at cineplex 15. tickets cost $9 for adults and $6 for children. the total cost for the movie is $78. write and equation to find the number of adults in the group show work

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer