Pa28-180
Jerry,
Please don't think me harsh, but you are showing a general lack of experience, and my earlier suggestion to go and fly with a "qualified" (as in experienced PA28-180) instructor means more with each post. The airplane is a nice easy machine to fly, but you will aways fly better after good instruction.
The airplane should approach at 1.2 or 1.3 times the stall speed with suitable adjustments for wind gusts etc. 80Kt. is rather high and I would expect you float quite a bit? That manual was written by good experienced people with good reason.
Have you stalled the machine yet?? Make sure your instructor shows you. It is very docile.
Please remember that a good approach will give a good landing. Correct approach speed equals a good landing speed!
Where you appear to be from needs a healthy respect, and understanding of density altitude. Please get some advice.
Brian.