Answer:
8 
Step-by-step explanation:
Sadly, you are doing this incorrectly.
The easiest way to find the area of this shape is to separate it into a square and a triangle.
This will leave you with a square with the dimentions 2x2 a triangle with a base of 4 and a height of 2.
The area of the square is 4 
Using the equation for the area of a triangle

We can plug in our 2 know values to get

Now we can take the sum of the areas of these two shapes to get a total area of 8 
1: Look at the 4, its a lot easier to multiply 5 x 5 rather than 5 x 4, plus if you are estimating, you are going to round either up or down.
2: Multiply 5 x 5 // the answer is 25.
3: Multiply 5 x 4 (the original) // which is 20.
Answer:
36 degreees
Step-by-step explanation:
JKL = 9x + 18
54 = 9x + 18
36 = 9x
4 = x
6(4) + 12 = 36
Y = 3x + 1, y = (5/2)x + 2, y = -12x - 9, y = -2x + 3, you must put x and y on opposite sides and put y alone and all the lines will be straight.
Answer:
C.) -2
Step-by-step explanation:
solve by putting 12 in for f(x)
12 = 2(x + 8)
Divide by 2
6 = x + 8
Subtract 8
-2 = x