Questions about ”hung out”,and ”elderly”etc

有D英文不太懂得,可否幫我,thz.
Are this sentences correct?
1,I hung out with my friends yesterday
2,I hang out with Mary today
3,We have to shows our concerns to the elderly.
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If I want to use a word to describe old people,"elderly","elders",which one is the best to use or common to use in English?

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If I want to translate this sentence in Chinese,am I correct or which one is correct?
對我來說,我覺得金錢不是萬能
1,For me,I think money isn't omnipotent
2,As for me ,I think money isn't omnipotent
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1,Given are two figures concerning criminality in Britain.
Are "Given' and "Concernining" verbs here?If not,what the forms are they?And what is the struture of this sentence?
2, At glance at the graph provided reveals some striking similarities between China and US.
Are"Provided' and "reveals' verbs here?If not,what the forms are they and what is the structure of this sentence?
Thanks