Need these answered fast! I’ll have to turn this in soon! I’m not understanding these very much

4. Given:
[tex]1.3\times10^4[/tex]To write the standard form:
[tex]1.3\times10000=13000[/tex]Thus, the correct answer is option A.
5. Given:
[tex]2.5\times10^{-3}[/tex]The standard form for the given is,
[tex]\begin{gathered} 2.5\times10^{-3}=2.5\times\frac{1}{10^3} \\ =\frac{2.5}{1000} \\ =0.0025 \end{gathered}[/tex]Hence, the correct answer is option B.
6. Given:
[tex]4.375\times10^4[/tex]The standard form for the given problem is,
[tex]4.375\times10000=43750[/tex]Thus, the correct option is option B.