What you have written really makes no sense. If you really mean "(2 to the 10th power)", that is just so this could be more easily written "N(a)= 2048a- 80a+ 500= 1968a".

Did you meanato the 10th power? Then it's just arithmetic: If, then .N(a)= 2a^{10}- 80a+ 500

The problemWhat's the domain of the function?says"where a= age of driver" and "drivers between 16 and 30 years of age".

The problemCan it be used to calculate the aprrox number of accidents for people 65 yrs of age?says"drivers between 16 and 30 years of age".

You seem to have difficulty reading the problem.I'm so lost. Please help me understand. Thanks