ko0lboy

he earn nth. cuz he sold it to the guy 9 bucks earn 1 dollar but when he buy it back with 10$he lost 1$.and when he sell it out when 11$ just got his money back !!he earn NOTHING they a raiseing the price up

gyarados

2 bucks

BT大皇

$2 bucks la, 公仔箱論壇' g2 S3 F8 J% I7 J' |7 x% R9 O
assume he has $9 at the beginning, minus $8 for the first purchase and sold it for $9, his balance should be $10, then he used $10 to purchase, the balance is $0, afterward, he got $11 back, his final balance would be $11, $11 - $9 = $2 in total

tcyong80

K囝

:onion31:

kennylee78

:014: 1

alanma

:onion03:

siauyin99

1蚊:onion05:

lil_yuky

我數學最差啦。。。。。。 3 蚊掛

火焰之神

:sleeps:

yukyuk

2 buck law easy