I have probably somewhere around 10 species of weeds in my backyard. Ever since my dad moved away I never really took care of the lawn, just simply cut it. Now I'm taking a bit more responsibility and would like some help identifying some weeds to get rid of them. I will put numbers beside each link so that it will be easy for you guys to refer to each picture and identify whichever weed it happens to be. Thanks a lot with the help I really appreciate it.

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I believe 4 & 5 are the same but not sure so:

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Now pics 6 &7 are of the same weed, but I zoomed up to the base of the weed for the first picture and the second picture has the full weed

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I'm pretty sure this last one is garlic mustard but confirmation would be good

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Anyways thanks in advance for any and all help / attempts at helping, even identification of a few of these will rid a good percent of weeds in my backyard. Thanks a lot, I really appreciate it.