Look at the picture.
The x-intercepts are where the graph crosses the x-axis, and the y-intercepts are where the graph crosses the y-axis. 
x-intercept (-250, 0)
y-intercept (0, 100)
 
        
             
        
        
        
Answer:
4 - ( 3x - 8 ) = 21 
break the bracket first ,it gives : 4 - 3x + 8 = 21 
12 - 3x = 21 
- 3x = 21 - 12 
- 3x = 9 
-x = 9/3 
-x = 3 
X = - 3
[ check if the answer is correct, put -3 instead of X in the above equation ! we get 4 - { 3(-3) - 8 } = 21 
4 - { - 9 - 8 } = 21 
4 - { - 17 } = 21 
break the bracket, minus and minus will multiply and will become plus , so we have 4 + 17 = 21 , hence 21 = 21 ! therefore X = -3 
 
        
             
        
        
        
Answer:
first would be 5-6 and second would be 8-10
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
x < 7
Step-by-step explanation:
7x < 49 (Given)
x < 7 (Divided 7 on both sides)