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:
8.68
Step-by-step explanation:
when you minus the two u get 8.68
:)
brainliest? i answered first :) and i only need one more
Dont know but mabye someone who is not 8 will know
It is a parabola because when you do the work, which I won't do for you, it ends up being a parabola, just saying hope this helps...
Answer:
Domain :Set of all real values
Range : -5
Step-by-step explanation:
Here we see the blue line. Assuming it to be the graph of the function we are about to find Domain for.
Here we see that the graph is a straight line , parallel to x axis at y=-5
Hence the function will be
f(x)=-5
Also for every values of x, y =-5. Hence it is defined for all values of x. So the Domain is Set of All Real numbers
However,
For every value of x, the value of y is constant that is -5. Hence The range of f(x)=-5 is {-5}