18+8x=-2y
18+8x/-2=-2y/-2
-8-4x=y
The speed of the boat will be 10 mph in still water
I'm guessing you're asking what shape do you get if you cut a hexagon is cut into sixths.
If this hexagon is a regular hexagon, then the shapes would be equilateral triangles.

Use distributive property to remove the parentheses:


Then, the product in the simplest form is:
From points (2, 0) and (6, 0), you can get base = 6 - 2 = 4.
From point (8, 5), you get a height of length 5.
A = bh/2 = 4 * 5/2 = 10
Area = 10 square units