HElP ME PLEASEEE!!!!!!!!! this is due at 12:59 pm and its 10:05. also if your answer is correct according to freckle, i might ask you some more questions, since i have like 2 more

bedroom wall=138 inches
1 poster is=36 inches
so 2 posters=72
139-72=66
the amount of space=
66 divided by 3=22