Answer:
y = 14
Step-by-step explanation:
The sum of the angles in a triangle add to 180 degrees
50 + 2x+ 5y + 10 = 180
We know that 2x = 50 since they are the base angles of sides that have the same length, they must be the same
50 + 50 + 5y+10 =180
Combine like terms
110 + 5y =180
Subtract 110 from each side
110+5y-110 = 180-110
5y = 70
Divide each side by 5
5y/5 =70/5
y = 14
 
        
                    
             
        
        
        
Answer:12.8
Step-by-step explanation:
 
        
                    
             
        
        
        
#2 because it’s a Pythagorean theorem triple 
Sorry I only know that one
        
                    
             
        
        
        
Answer:
91 cents 
Step-by-step explanation: 3 times 25 is 75
3 times 5 is 15 then 1 so add to together 
 
        
                    
             
        
        
        
Ok so this is a difference of 2 perfect squares
1=1^2
49c^2=(7c)^2
to factor you remember
a^2-b^2=(a+b)(a-b) so
1^2-(7c)^2=(1+7c)(1-7c)