Answer
Please see the work below.
Work Step by Step
We can convert the given temperature to $C^{\circ}$ as
$7.3\times 10^2-273=4.6\times 10^2C^{\circ}$
Similarly, we can convert the given temperature to $F^{\circ}$ as
$(4.6\times 10^2 C^{\circ}\times \frac{9F^{\circ}}{5C^{\circ}})+32F^{\circ}=8.6\times 10^2F^{\circ}$