Just help me with number 4, 5, 6, 7, 8,and 9

Answer:
4) 2.034 (line over .034)
5) 0.92 (line over the 2)
6) 0.7 (line over the 7)
7) 1.6*10^8
8) 2.983* 10^4
Step-by-step explanation:
I'm doing this off memory, I'm not 100% sure on #s 4,5,6.
Good luck, hope this helped ^-^