Please help with this Geometry problem!

*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

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

What is the slope of any line parallel to the line 8x+9y=3 in the standard (x,y) coordinate plane?