A google search for 'printing photos file size' brought up this site, which has a chart for printing at 200 ppi & 300 ppi
http://www.urban75.org/photos/print.html.
If you want to check out some more of the search results - click this
http://www.google.com/search?rlz=1C1CHM ... 8f1bff98ea===============================================
a google search for 'photoshop resolution' brought up this helpful site
http://www.photoshopessentials.com/esse ... e-quality/if you would like to check out more info about image size & resolution click this
http://www.google.com/search?rlz=1C1CHM ... resolutionPlease indicate which version of photoshop elements you are using.
I find the help files included with the programs are very useful for the basics. Also, there are several good authors who publish good books & tutorials. Mark Galer, Deke McClelland, Philip Andrews, Scott Kelby, Matt Kloskowski, Corey Barker & Dave Cross to name a few.
Photoshopelementsuser com has hundreds of good tutorial videos
There is an annual $59 subscription fee to the site which publishes a magazine & online articles as well
http://www.photoshopelementsuser.com/I found the site most helpful & well worth the annual subscription fee.
Kelby Online Training also has many lessons for both photography & some versions of photoshop. Should you subscribe, you will need to end the subscription at the end of the billing month, or another month's subscription is automatically billed.