a) If the cost of the ticket is $360 now, we can take as the 100% the $250 from two weeks ago to get the following:
[tex]\begin{gathered} \%\text{ increase=}\frac{360}{250}\cdot100=144 \\ \end{gathered}[/tex]therefore, the percent increase is the difference between 100 and 144, then, we have that in this case, the percent increase is 44%
b)If the airline also charges a $50 fee, then the new total is:
[tex]360+50=410[/tex]then, the percent increase is the following:
[tex]\%\text{ increase = }\frac{410}{250}\cdot100=164[/tex]therefore, the percent increase is 164 - 100 = 64%
