I don't know how to solve it, hihihi... help please
I bought a chicken at $13, then sold it at $15. After awhile, I bought it back at $17, then sold it again at $19.
Do I have some profit? If I do, how much?

Question

anonymous · Answer

-15+17-17+19

loser66 · Answer

I am sorry, I edit the question.

ganeshie8 · Answer

how much did you spend on feeding the chicken ?

loser66 · Answer

ignore it, just calculate the profit. :)

anonymous · Answer

-13+15-17+19

anonymous · Answer

-13+15-17+19  = 0 you don't have x)

loser66 · Answer

@swagmaster47  I show you how many score a student can get from your answer.:)

loser66 · Answer

That's why I need some help to know what is going on. :)

anonymous · Answer

@Loser66 There's a language barrier between me and that document

loser66 · Answer

just look at the number and the score. :)

freckles · Answer

what does Od with a horizontal line going through the d mean?

loser66 · Answer

d means credit

freckles · Answer

is that one question is 90 points ?

loser66 · Answer

yes

loser66 · Answer

And the comment is : "You need seriously consider your knowledge"
Me too. hahaha