PLEASE I DESPERATELY NEED HELP WITHH THIS Do problems 1,2,5,6,9,12

Can (3,5 and square root 34) be sides on a right triangle?

Which of the following is not a subset of {1,2,3}?

Darren earned $663.26 in net pay for working 38 hours. he paid $118.51 in federal and state income taxes, and $64.75 in fica taxes. what was darren's hourly wage? question options: $17.45 $19.16 $20.57 $22.28