How to crop edit and resize an image?

I'm trying to do an adoption write up for two rescue dogs that needs home. The rescue I'm working with says the pictures I took with my iphone need to be cropped, edited, and resized to medium

I'm NOT computer savvy so how do I do that on my laptop? I don't have photoshop or anything fancy

They need to be scanned into your computer first. You can download GIMP which is free online and it's used like Photoshop. It can do all that for you. My sister uses it.

Windows comes with Paint, a program found in start->all programs->Accessories->Paint and it has crop and resize. You first open paint and then you hit CTRL+O or open your photo in paint using another method, then you crop the photo removing unnecessary details and if it's still too big you can resize it to 70% or 50% using the Resize tool on the Home tab.

Here's a tip: download Photofiltre studio x (30 days free trial, but i've got the serial code)
Import the photos on your phone to your laptop and open it on pfs x. Set the photo as a new layer and you can resize it, crop it and put like effects or something else
it's an easy program to resize, crop so you'll understand it right away. If not, I'm willing to help you\
download pfs x http://www.photofiltre-studio.com/download-en.htm

Plug your IPhone into your computer, and then transfer your image(s) to your computer. You can either use GIMP, or Photoshop to crop, edit, and resize your image(s). Depending which software you choose, maybe you can find a guide on the Internet to learn how to crop, edit, and resize your image(s).

If you don't have one, or both of these programs, then you can get it, and then install it on your computer.