I believe the answer is 2 if that’s an option
        
             
        
        
        
X = velocity of plane 
 y = velocity of wind 
 x - y = 1680/5 = 336 mph .....(1) [ plane flying against the wind] 
& 
 x + y = 1680/4 = 420 mph....(2) [ plane flying with the wind] 
 Adding (1) and (2) to eliminate y gives 
 2x = 756 
 x = 378 mph is the speed of the plane with no wind.
        
                    
             
        
        
        
The Solution:
The correct answer is [option B]
Given:
Required:
To determine the inequality represented by the given number line.
 
 
        
             
        
        
        
The measure of arcPR and arcRPT are 83 and 208 degrees respectively
The measure of arc ST will be gotten using the expression below:
arcPS = arcPT + arcST
Given the following
arcST = arcPS - arcPT
arcST = 180  - 125
arcST = 55 degrees
Similarly, arcPR = 180 - arcRS
arcPR = 180 - 97
arcPR = 83 degrees
arcRPT = arcPR + arcPT
arcRPT = 83 + 125
arcRPT = 208 degrees
Hence the measure of arcPR and arcRPT are 83 and 208 degrees respectively
Learn more about circles here: brainly.com/question/24375372