a)
[tex]2.134 = \frac{2134}{ {10}^{n} } [/tex]
[tex]n = 3[/tex]
b)
[tex]12.10 = \frac{1210}{ {10}^{n} } [/tex]
[tex]n = 2[/tex]
c)
[tex]12.10 = \frac{121000}{ {10}^{n} } [/tex]
[tex]n = 4[/tex]
d)
[tex]4.13 = \frac{n}{ {10}^{2} } [/tex]
[tex]n = 413[/tex]
e)
[tex]254.0131 = \frac{n}{ {10}^{4} } [/tex]
[tex]n = 2540131[/tex]
