To find out whether the resistors overheat, we must calculate whether the power dissipated,P exceeds the power rating of 0.50W. We know that the potential difference across the resistors V is the same for both resistors at 10V since they are both in parallel. Hence, there are multiple ways of completing the problem such as using the formula P = V^2/R (which is faster given that you know V and R already) or the one shown above where I find current, I, first then use the formula P=I^2R.

Try using the P=V^2/R method and hope this helps!