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 
Answer:
3:5
4:4
15:7
Step-by-step explanation:
they only gave you 1 equation that is equal to 8 so all the others must be equivalent to 8
Yes, real numbers are always rational numbers