Read the exercise carefully and try to work out the logic. Your chapter $13$ folder contains versions of travel.html and travel.php and a function library named inc$-$travel.php$.$ Look through these files carefully. The code in travel.php must be completed so that this program will use the functions supplied in inc$-$travel.php to obtain the air fare, nightly hotel rate, cost of the tickets, and cost of the hotel, based on the user's inputs. In other words you must complete the following statements:

$airFare $=$ ;

$hotelRate $=$ ;

$ticketCost $=$ ;

$hotelCost $=$ ;

The statements to receive the user's input and generate the output have been provided. Don't forget that you must include the inc$-$travel.php Code!

Please helpppp!!!