If the phone costs £140 down, and you must pay £15/mo, then to figure this out, we must simply to <span>£15 x 12, because there's 12 months in a year, then add the other 140.
15 x 12 = 180 + 140 = 320.
So there you are, you pay in total </span><span>£320 at the end of the year. </span><span> Hope this helps! :)