You need to divide 9 to both sides in order for y to come alone. So then you would have to divide 27 by 9 and y = 3. Hope this helps!
Answer: I added an attachment of what the graph should look like! :)
Step-by-step explanation:
v = 1/3Bh
Divide both sides by h.
v/h = 1/3B
Multiply both sides by 3.
3v/h = B

Sqrt55. Use the pythagorean theorem; 3^2 + x^2 = 8^2