Easy, use these two formulas, to find Markdown:
Markdown=Original-New
and
Markdown%=

So, plug in what you know.
Markdown= $30-$20.10
M=$9.90
Now, Markdown%
Markdown%=

M%=0.33*100
M%=33
Thus, there was a 33% markdown.
Answer:
D
Step-by-step explanation:
You can look at it like a right triangle being made with the vertical part being 9 and the horizontal part being 8, then you want to find the diagonal part. So that's the Pythagorean theorem

Answer:
525,000 N
Step-by-step explanation:
Since Force is mass multiplied by acceleration, you have to create the equation 25000*21 m/s^2.
25000*21 = 525000
She hit the parked car with 525,000 Newtons of force.
Here's the answer to your questions
Answer:
Maybe 180° -50° = 130°
So I think x= 130°
Step-by-step explanation:
My opinion though