Help me with my math homework please and thank you

*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

Maria solved an equation as shown below. what is the solution to maria’s equation?

If a=0.333333 and b=0.55555, what is the value of a+b