Answer:
1.B not sure about 2 though sorry i couldnt help u on 2 Step-by-step explanation:
 
        
             
        
        
        
Answer:
-3
Step-by-step explanation:
5•-3=-15
4•-3=-12
-15+3=-12
 
        
                    
             
        
        
        
Answer:
A. cos(  )
)
Step-by-step explanation:
Typed the all the expressions into desmos and picked the ones that matched
 
        
                    
             
        
        
        
Answer:
MEE PLAESE
Step-by-step explanation: