Answer:
The last one is correct.
Step by step:
Each income has ONLY one outcome.
<span> Simplifying
4x + 4y = 0
Solving
4x + 4y = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4y' to each side of the equation.
4x + 4y + -4y = 0 + -4y
Combine like terms:
4y + -4y = 0
4x + 0 = 0 + -4y
4x = 0 + -4y
Remove the zero:
4x = -4y
Divide each side by '4'.
x = -1y
Simplifying
x = -1y</span>
D.
x-intercept = 5
y-intercept = 15
The answer will be $1500 because you change a percent to a decimal and then you multiply $500 by .3 and then you going answering any multiply it by 10 times