Answer:

Step-by-step explanation:
If
are coordinates of a triangle then area of a triangle is equal to 
Let point P be 
Put 
Area of a triangle = 

Also,
Area of a triangle = 9 square units

±18 = -19 + 5x - 2y

Answer:
B=-9
Step-by-step explanation:
Technically, I didn't solve it. I used an algebra calculator online called m a t h w a y. It helps a lot but if you really need to know how to solve it on pencil and paper I cannot help you.
I had to space out the website so it let me submit this answer btw
Answer:
It is a growth.
Step-by-step explanation:
If the number in parenthesis (exponential base) is greater than 1, then it is a growth. If it is between 1 and 0, then it is a decay.
You would take 3 x 4 which equals 12. And then you would take 12 x8 which would equal 96
I am pretty sure the answer is B