Step-by-step explanation:
answer is shown above, that is a tricky question though.
For the first one for # 1 is x=2(y−5)<span>
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9. answer is 12
10. answer is 3.5
11. answer is 23
30043——————3.0043 x 10^4
30.043—————— 3.0043 x10^1
0.0030043—————-3.0043 x 10^-3
0.30043—————-3.0043 x 10^-1
3.0043————-3.0043 x 10^0
Hope this helps please mark brainiest