Answer
$-89.22^\circ\text{C}$
$183.93\text{K}$
Work Step by Step
We will use the formula:
$C=\frac{5}{9}(F-32)$
Substitute $F=-128.6$:
$C=\frac{5}{9}(-128.6-32)\approx -89.22^\circ{C}$
Then we use the formula:
$K=C+273.15$
Substitute $C=-89.22$:
$K=-89.22+273.15\approx 183.93K$
