Hello and thanks for your question. Your image 9425 looks to be 4 o'clock seedlings coming up. They are a self-seeding annual in some areas, and a tender perennial in others. Where they overwinter (herbaceous vegetation dies back to the ground), they develop a very large taproot. Each plant can produce copious seeds for the following season. Seedlings are relatively easy to hand pull, if it is in an undesirable location, but plants that have developed a taproot will need to be dug with a shovel.

Image 9424 is difficult to discern. It could be a weed, or a desirable plant, but until it flowers it's hard to say with that photo. If you'd like to send additional photos I'll give it another look, or you can wait until it flowers and we can ID it then. 

Image 9423 looks like a type of coreopsis, or tickseed, which is a great, long flowering, low maintenance perennial, but (again) it will be easier to tell once it flowers. Many native perennials and weeds have a similar growth habit. Feel free to send more photos to me once they're blooming and I can help you further ID your last to images.