Multiply the $75 by 1.125 which represents the total amount of interest AND the orgininal amount
75*1.125=$84.37
        
             
        
        
        
Answer:
d = 3.5t + 1
Step-by-step explanation:
The linear function would have to multiply the speed she runs at the track by the number of hours that she spent running. Then it should add this amount to the 1 mile that she walked to get to the track. If we use the variable d as the total distance that she ran and walked, and the variable t to represent time then we would create the following linear function/model.
d = 3.5t + 1
 
        
             
        
        
        
The answer would be 1/4 or 

 i hope this answer helps!
 
        
        
        
Answer:
   1/2
Step-by-step explanation:
The slope of a line is the ratio of "rise" to "run". 
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This line goes through grid intersections at (0, -7) and (2, -6), a rise of 1 unit for a run of 2 units to the right. The slope is ...
   slope = rise/run = 1/2
 
        
             
        
        
        
For this case we have the following variables:
 t: time in seconds.
 f (t): height as a function of time.
 By the time Grace reaches the pool, the height is equal to zero.
 We have the following table:
 Time (t) (in seconds) Height f(t) (in meters) 
           1                                   25 
           2                                  20
           3                                   15
           4                                   0
 We observe that the height is equal to zero after 4 seconds.
 Equivalently:
  
 Answer:
 the following represents the x-intercept of f(t):
 Grace reaches the swimming pool after 4 seconds