Answer:
1)0.0275
2)3.9×10^10
3)2×10^-6
4)did u mean 10^4?
if so then it would be 73,680
explanation
1)2.75×10^-2
2.75×.01=0.0275
2)39,000,000,000.00
in scientific notations the first number has to be lower than 10 and higher than 1>
3.9 works so i would take the dot/period and bring it between 3 and 9, the dot would travel 10 places therefore you raise the 10 to the 10th power
3.9×10^10
4) and since 10 is raised to the 4th power you would just move the dot 4 places right and you get
7.368>73,680
