This is my first time using pico 8 and i can't figure out how to import these sprites into the engine. Can anyone help?

You can start with the cart that they are in.

Or you can IMPORT <filename>.PNG and that will import a sheet of sprites at Pico-8 command line. That will wipe out all the sprites in the currently loaded cart though!

Or you can SHIFT-drag on sprites to select a rectangle of them in cart, ctrl-c (or Command-C on Mac) to copy them, then load another cart, select a place in the spritesheet and paste to paste them there.

You can use RESPRITER (linked in the Jam page) to re-organize / swap sprites in the spritesheet.

Hope all that helps.  Message if you need more help!