Answer:
120°
Step-by-step explanation:
A line must add up to 180°. 
The sum of angles in a triangle also adds up to 180°.
Step 1: Find measures interior angles.
3x = 180
x = 60°
Step 2: Find measures of exterior angels.
x + 60 = 180
x = 120°
 
        
                    
             
        
        
        
Answer:
subtraction
Step-by-step explanation:
just did it and got it right 
 
        
             
        
        
        
On March 8, 2017, one U.S. dollar was worth 19.61 Mexican pesos, 149.23 pesos was worth 7.61 dollars and 63.64 dollars was worth 1247.98 pesos
<h3>What is an 
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
One U.S. dollar = 19.61 Mexican pesos
a) 149.23 pesos = 149.23 pesos * One U.S. dollar per 19.61 Mexican pesos = 7.61 dollars
b) 63.64 dollars = 63.64 dollars *  19.61 Mexican pesos per dollar = 1247.98 pesos
On March 8, 2017, one U.S. dollar was worth 19.61 Mexican pesos, 149.23 pesos was worth 7.61 dollars and 63.64 dollars was worth 1247.98 pesos
Find out more on equation at: brainly.com/question/2972832
#SPJ1
 
        
             
        
        
        
Answer:Yes, I checked.. it is option 2
Step-by-step explanation: