Answer:

Step-by-step explanation:

It seems this system of equations would be solved easier using the elimination method (the x and y values are lined up).
Multiply everything in the first equation by -2 (we want the 4x to be able to cancel out with a -4x).

Now line up the equations (they are already lined up - convenient) and add them from top to bottom.

The -4x and 4x are opposites, so they cancel out.
Adding 6y and 2y gives you 8y, and adding -12 and 4 gives you -8.

Divide both sides by 8.

Since you have the y-value you can substitute this in to the second (or first equation, it doesn't necessarily matter) equation.

Simplify.

Add 2 to both sides.

Divide both sides by 4.

The final answer is
.

The answer is :
0.18181818
But you can also write it like this
Answer:
A
Step-by-step explanation:
To express 4/5 as a decimal, you divide 4 by 5. Here is long division image at the bottom. You can just input it into a calculator (4 divdie 5) or notice that 4/5 = 8/10 = 0.8.
I hope this helps!