1m=100cm
1.6m=160cm
160-10=150
He was 150cm one year ago
So the sale price was $160 and the shipping fee was $8.
They are asking what percent of the sales price was the shipping fee...
or in other words, what percent of 160 is 8?
Divide 8/160
You should get 0.05, or 5% :)
Number one would be x=4, I hope this helps