Answer:
2 cubic yards
Step-by-step explanation:
In this problem we are simply finding the volume of a 3D shape. We can calculate this by L × W × H.
9.5 × 12 × 1/3 = 48 ft³
(Note: 4 inches is 1/3 foot)
This means Rosilaine needs 48 cubic feet of wood chips. However, the wood chips are sold in yards, so we need to convert cubic feet to cubic yards.
48 ÷ 27 = 1.777 (repeating decimal)
This means Rosilaine should buy 2 cubic yards of wood chips.
The expressions for this are A,B,C,E,G
3 units down would be subtracting 3 from the Y values and 4 units left would be subtracting 4 from the X values
Point A is at (2,-1)
The new point would be at (2-4, -1 -3) = (-2,-4)
Point B is at (1,-4)
The new point would be at (1-4, -4 -3) = (-3,-7)
Point C is at (3,-5)
The new point would be at (3-4, -5-3) = (-1,-8)
Point D is at (5,-3)
The new point would be (5-4, -3-3) = (1,-6)
So the new location would be:
A' (-2,-4)
B' (-3,-7)
C' (-1,-8)
D' (1,-6)

This may look scary, but all you have to do is distribute, first:

Now it's much easier (remember to distribute the negative):

So, the entire thing simplifies to
-2c. NEAT!
That is the x spot or the non existing spot it is there just to make sure you have the numbers in order right and so the sums for the multiplication equation do not collide