Carbocation formation and stability from bromo compounds
Yes, both your answers and reasoning are correct. For the second compound a slight ambiguity might arise, because the $\mathrm{sp^2}$-hybridized carbons show $\text{-I}$ effect which would destabilize the carbocation, however considering the fact that there are not only  $\ce{2 Me}$— groups attached which show $\text{+I}$, they are also closer than one of the $\mathrm{sp^2}$- carbons, it is quite natural that the net inductive effect would stabilize it.