1. The biggest problem of electric cars is still plugging in, since electric car owners need to be aware of the locations of electric charging stations and plan their ________ accordingly.
Q1. In this context, I wonder if "ranges" are appropriate in the blank.
2. As the tax rate declines and ___________ income rises, there is an increase in the incentive for skilled people.
Q2. In this case, I also wonder "affordable" is possible? I think "disposable income" is possible, but I am not sure "affordable income".
Thank you in advance