I don't really get what the "35,000 feet university sea level" part is saying, but without it, the answer would be: 
3.5 x 550 = 1,925
The plane traveled 1,925 miles.
And with it, the answer would be:
3.5 x 550 = 1,925
35,000 ft = 6.6 mi
1,925 + 6.6 = 1,931.6
The plane traveled 1,931.6 miles.
Hope this helped a little at least.
 
        
             
        
        
        
The answer should be 78. 57%
        
                    
             
        
        
        
Answer:
14 more meters
Step-by-step explanation:
6 times square (4) = 24 
24-10 = 14
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y =  x + 9 ← is in slope- intercept form
 x + 9 ← is in slope- intercept form
with y- intercept c = 9
then the line crosses the y- axis at (0, 9 )