Welp someone already answered and I just gotta answer questions so goodluck :)
Answer:
The answer is $345.60
Step-by-step explanation:
12 x 18 room = 216 square feet
216 x $1.60 = 345.60
It will cost you $345.60 to cover the room.
X = 13
( x + 4) / 51 = (2x - 7) / 57
585 = 45x
585/45 = 45x/45
x = 13