i got this question from a teacher and i am no good at percentages and was hoping someone could tell me how to do it. so here's the question Steffi buys a new motorbike and puts her old bike up for sale for £380, at the beginning of each week she will reduce the price by 15% and rounds it up to the nearest £10
.Steffi finally sells the bike for £170. During which week did she sell it?
if you could answer it you will be amazing, if you can help me you will still be great
plz and thank you