It’s d or a but it’s probably d don’t take my word for it boy
Answer:

You don't technically need the ( ) around the 2n, but I included them to avoid confusion.
D 2520 -------------------------------------------
Answer:
mp=2800
mp=cp+40%ofcp=cp+40/100×cp=1.4cp
2800=1.4çp
cp=2800/1.4=2000
discount=20%
profit%=?
Step-by-step explanation:
sp=mp-discount%of mp=2800-20/100×2800=2240
profit=sp-cp=2240-2000=240
profit%=profit/cp×100%=240/2000×100%=12%
The answer is going to be A.
Shadow 1 / Height 1 = Shadow 2 / Height 2