Question 853039
There are three stages to this problem
1-the time and distance to the airport time x *45=d 
2- time sent at the airport and 60 minutes or one hour

3-time and distance flying  380a=f

x+1+a=5,
d+f=850,
45x=d,
380a=f
four equations with four unknowns
a = 2,   d = 90,   f = 760,   x = 2
1-She drove for 2 hours at 45 mph for a distance of 90 miles.
2-1 hour at the airport
3- she flew 2 hours at 380 for a distance of 760

So the answer to the only question is 90 miles tot he airport from her house.