<u>ANSWER</u>
A. (4,12)
<u>EXPLANATION</u>
The equations are:

and

To eliminate a variable we make the coefficients of that variable the same in both equations.
It is easier to eliminate x.
We multiply the first equation by 2 to get:

We add equations (2) and (3).


Divide both sides by 23


Put x=4 into equation (1).






The solution is (4,12)
It’s D, when lines are perpendicular, the slopes of the lines are opposite reciprocals.
Answer:140ft2
Step-by-step explanation: area= base times height
Area=14ft . 10ft
Area=140ft2
Answer:
it is
Step-by-step explanation:
because it addition it doesn't matter which way you put it
Answer:

Step-by-step explanation:
