well the first target would be 19, and the of course the previous high in May around 19.5.  On a pullback you want to see the broken trendline hold as support and hopefully the gap as well.

now via triangle measurement you can measure the triangle in a couple ways, from the middle from 17 to 19, about $2, add that to the breakpoint trendline and you get about 20.  If you measure to the highs you get around 20.5 - 21.  Again I am doing it very roughly, instead of measuring exact numbers, I just eye ball it and then round the numbers down generally.