How much longer will it take me to get the Iphone 5s?

Ok so I currently have $13.35 I obviously have a ways to go but I was wondering how long would it take me to get the iphone 5s if I earned 15 dollars a week put 1/2 of that in my savings ( my local AT&T is selling the Iphone 5s for $90 because they have too many )

please no rude comments if there are any I will block you

Alright so including sales tax (which I'm assuming is 7%), you need $96.30. You have $13.35, which I'm sure you realize means you have $82.95 to go. If you earn $15 a week half would be $7.50. $82.95 divided by $7.50 is 11.06.
--This means you should be able to afford an iPhone 5s in 11.06 weeks, say 12 to be safe! ^_^ good luck!

Verizon is offering 5S on contract for $99, AT&T is offering it at $90? They must have just recently matched Verizons offer then.