Miracle-Gro Seed Starting Potting Mix, 8-Quart

Does it work for begonia bulbs? I’m new to the gardening deal, lol

how many little starter containers will this fill?

Whats in this mix, is it basically the same if I used a peat moss or coco coil and miracle grow liquid

Is 8 quarts of this enough to start my oat grass in a catbox sized tray sized container?