Question

what is the method to do

Answer 1

here is ur answer check it.
hope it is helpful plz mark as brainliest if you are satisfied

Answer 2

$\frac{ {2}^{4} }{ {2}^{k} } = \frac{1}{ {0.5}^{ - 3} }$
${2}^{4 - k} = {0.5}^{3}$
$2 = \sqrt[4 - k]{0.125}$
$log_{2}(0.125) = 4 - k$
$k = 4 - log_{2}(0.125)$
We know that log base two of 0.125 is (-3)
$k = 4 + 3 = 7$