-15 is 15 below o
 you are adding 4 , so you are getting closer to 0
 so you would actually use subtraction, 15-4 = 11
 since 15 is negative, and you are adding a number smaller than 15, the answer would be negative so it would be -11
 
        
             
        
        
        
Answer:
Yes
Step-by-step explanation:
4 < 3(2) + 6
4< 6+6
4 < 12
 
        
                    
             
        
        
        
7x+1000+x=89000
7x+x+1000-1000=89000-1000
8x=88000
8x/8=88000/8
x=$11000
        
             
        
        
        
Step-by-step explanation:
<R = 180-<P-<Q
<R= 180-60-75
<R = 45°.
hope this helps you