Answer:
850
Step-by-step explanation:
First, we know L and W are the same number. The in the end the Length is 6 more, therefore we add 6. The equations begins as so
2x+6=27
-6
2x=21
/2
x=10.5
+6
Therefore the Width =10.5 M
The Length = 16.5 M
If I am reading this right, the final total after adding the 55% markup rate should be $159.65.