Deb is searching online for airline tickets. Two weeks​ ago, the cost to fly from Boston to Denver was ​$210. Now the cost is ​$350. What is the percent​ increase? What would be the percent increase if the airline charges an additional​ $50 baggage fee with the new ticket​ price?

The percent increase of the airline ticket with the baggage fee is

66.67%.

To calculate the percent increase in the airline ticket price from $210 to $350, we use the formula:
Percent Increase = ((New Price - Old Price) / Old Price) * 100
Percent Increase = (($350 - $210) / $210) * 100
Percent Increase = ($140 / $210) * 100
Percent Increase = 0.6667 * 100
Percent Increase = 66.67%

If we add a $50 baggage fee to the new ticket price of $350, the new total price would be $400.
To calculate the percent increase with the baggage fee, we use the same formula:
Percent Increase = ((New Price - Old Price) / Old Price) * 100
Percent Increase = (($400 - $210) / $210) * 100
Percent Increase = ($190 / $210) * 100
Percent Increase = 0.9048 * 100
Percent Increase = 90.48%

Therefore, the percent increase in the airline ticket price with the baggage fee would be 90.48%.