Hello there.
What is the height of the second rectangle?
12.
Answer:

Step-by-step explanation:
Substitute y = x-4 in the first equation.

Distribute -2 in the expression.

Because we only want to find the value of x.
Therefore the answer is -4.
Answer:
The answer is -3.4. If you have to round it, round it down to 3.
Step-by-step explanation:
Fifteen-thousand-four-hundred-and-nine.
10,000+5,000+400+9