Answer :
12+12=24 38-24=14. 14/2=7 7*12=84. 84sqyds for the 1st room.
13+13=26 50-26=24. 24/2=12 12*13=156. 156sqyds for the 2nd.
10+10=20 46-20=26. 26/2=13 13*10=130. 130sqyds for the 3rd.
84+156+130=370sqyds of carpet
13+13=26 50-26=24. 24/2=12 12*13=156. 156sqyds for the 2nd.
10+10=20 46-20=26. 26/2=13 13*10=130. 130sqyds for the 3rd.
84+156+130=370sqyds of carpet