Answer:
3 less than or equal to x less than or equal to 13
3 ≤ x ≤ 13
Step-by-step explanation:
 
        
             
        
        
        
9514 1404 393
Answer:
   5
Step-by-step explanation:
Let f represent the number of friends. Their total earnings are ...
   21f = 105
   f = 105/21 = 5 . . . . . divide by the coefficient of f
There are 5 friends in the group.
 
        
             
        
        
        
Answer:
the horizontal distance traveled by the car during this time is 812
Step-by-step explanation:
 
        
             
        
        
        
Answer:
y = mx+b is the equation for slope-intercept form
Step-by-step explanation:
m=slope
x=independent variable
y= y-intercept