Answer:
X=70
Step-by-step explanation:
70 + 75 + 35 =180
x + x+5 + x-35
 
        
             
        
        
        
Answer:
The event is mutually exclusive. 
Step-by-step explanation:
Mutually exclusive events are events that cannot exist simultaneously. 
Thus, events that are not mutually exclusive can exist simultaneously. 
Since each student only has one major, a single student cannot be both a mathematics major and a business major. 
So, the event is mutually exclusive. 
 
        
             
        
        
        
The constant of proportionality is $1.5 per jar of sauce. Hope it help!