Answer:
Percent markdown = 14%
Step-by-step explanation:
Given:
Original price of DVD player = $175.90
Markdown price of DVD player =$153.77
To find percent markdown.
Amount of mark down 
Percent markdown 
819 is the answer because thats how many visitors he got
Answer:
D. I got it right on my quiz.
Step-by-step explanation:
Here's a list that might help:
Odd functions: sinx, tanx, cotx, cscx
Even functions: cosx, secx