Hello there! 
y + 15 < 3 
Start by subtracting 15 on both sides 
y + 15 - 15 < 3 - 15 
y < -12 
As always, it is my pleasure to help you guys on here. Let me know if you have any questions. 
        
             
        
        
        
Answer: According to the pair of angles in the diagram, its B) Adjacent.
Step-by-step explanation:
-Adjacent angles are two angles that don't overlap each other and have a common side and a common vertex. 
 
        
             
        
        
        
Answer: the answer is 7
Step-by-step explanation:
 
        
             
        
        
        
The solution has to be a value of x. Since you already have x, you just have to plug in the value and see what fits. In this case thats the third from the top:
5^2 - 10*5 + 25 = 0
25 - 50 + 25 = 0
0 = 0
Hope it helps!
 
        
             
        
        
        
Answer:
a. {(0, 7), (-1, 6)}
Step-by-step explanation:

subtract the equations

for  , substitute x = 0
, substitute x = 0

for  , substitute x = 0
, substitute x = 0
