tolong jawab pertanyaan ini

[tex]a. 16 {k}^{3} {m}^{2} {n}^{7} [/tex]
[tex]b. \: { ({2}^{3} )}^{4} \times { ({2}^{3}) }^{ - 5} \\ = {2}^{12} \times {2}^{ - 15} \\ = {2}^{ - 3} \\ = \frac{1}{ {2}^{3} } \\ = \frac{1}{8} \\ = 0.125[/tex]