I rectangled these two notations on score. What does these two notations mean?
The first two are winged repeat barlines. The 'wings' are common in commercial and jazz copying styles, making it easier to see the repeats when sight-reading. I've been known to emphasise them further with a red pen!
You haven't questioned previous appearances of the rather scruffy hand-written quarter rests, so I guess it's the opening parenthesis before it that's confusing you? Note there's a closing one too. The whole measure is in parentheses to indicate that the notes are to be played when making the repeat, but not when ending at the (somewhat mis-placed) 'Fine'.
The top ones are repeat brackets. Usually, they don't protrude beyond the five lines. Whenever I have a new sheet to read, the first thing I do is make them look like the ones from the Real Book, with a highlighter. Any further ones get adapted likewise, but with a different colour. Just makes reading so much easier.
The last sign is a crotchet (quarter) note rest. Easy to work out, when there are three more crotchet (notes) in that bar! Not so easy to write! Although often any old squiggle works - just do the sums.