A variable is the unknown amount ojj
Put it in a calculator bro
Answer: $180
4ft + 5ft + 4ft + 5ft = 18ft
18 x 10 = 180
You have to give them the same denominator so multiply 11/12 by 4 and 3/16 by 3. giving you 44/48 and 9/48. then divied 44 by 9 giving you 4.8888
there for there are 4 whole 3/16 sections of the 11/12 board
