Answer:
Step-by-step explanation:
3x + x + 60 = 180.
first, we add the x's together.
4x + 60 = 180 
then we see if they all have a common multiple. in this case, they do. they are all divisible by 4, so we can use that.
x + 15 = 45
then, just subtract 15 from both sides, that way we get the variable by itself. 
x = 30
also, it is a right triangle. the top angle (3x) multiplied by 3 is 90. any triangle that has a 90 degree angle is automatically a right triangle. 
 
        
                    
             
        
        
        
The answer really depends on what b is. Unless you give me a number for what b equals I can’t solve it.
        
             
        
        
        
Answer:
6-1
Step-by-step explanation:
 
        
             
        
        
        
Answer:
4520 yards
Step-by-step explanation:
2 miles=3520
3520+1,000=4520
 
        
                    
             
        
        
        
Answer:
42 Kids
Step-by-step explanation:
1st you have to subtract 7 form 301 so you get 294
2nd you divide 294 by 7 294/7
And you should get an answer of 42 Kids