First markdown reduces the item to 0.80×495=$396.
The second markdown reduces it to 0.90×396=$356.40.
6 x 10^5 / 2 x 10^7 =
6 x 100,000 / 2 x 10,000,000 =
600,000 / 20,000,000 =
6 / 20 =
3 / 10 =
.333333333....
Hmm, I'm pretty sure it's two right triangles.
Probably 6
I may be wrong but try it
One US ton is 2000 lbs, thus 2/5 of that is just their product,