That is the slope
rise/run
we see we have (2/5,1/2)
rise is y, run is x
(x,y)
((1/2)/(2/5)=(1/2)(2/5)=2/10=1/5
unit rate is y=(1/5)x
        
             
        
        
        
 A=100° 
as 180-140= 40 , 40 x 2 = 80 & 180-80 = 100° = a
        
             
        
        
        
Answer:
48
Step-by-step explanation:
p/100×25=12
p/4=12
(p/4)×4=12×4
p=48
I hope this makes sense
 
        
             
        
        
        
The second one is correct
        
             
        
        
        
Answer: Yes 
Step-by-step explanation: A triangle can be formed because A+B>C
A and B are 2.9 and 4.8 
Since those numbers have the least value
I added both and found that A and B are equal to 7.7 
7.7>7.4 
These sides could form a triangle