54.8 m= ? km? how did you solve? do you place the zeros in front or behind the number? where does my decimal go and why does it go there? explain these questions for 11 points its all i have. i will give you more after.

9/10 divide by -3/15 as a mixed number

X+y=-4 x-y=2 use elimination with adding and subtraction

*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