Answer: She ran 3 miles
Explanation:
1/2 miles walked) • X = (2 Miles walked) 
X= 4
4 • 3/4 miles ran = 12/4 miles ran = 3 miles ran.
        
             
        
        
        
Answer:
ZERO 
Step-by-step explanation  
 
Write the given function as
F(x) = ax + b
i.e Y = ax + b
now differentiate Y with respect to X 
dY/dX = d (ax + b)/ dx
 dY/dX = a
now again differentiate this function with respect to x 
so,  d^2Y/dX^2 = d^2 (a)/dX^2
                          = 0 (ZERO) 
note: differentiation of constant function is zero 
 
        
             
        
        
        
Answer:
$3400 after one year
$17400 after the 36 months
Step-by-step explanation:
3000+400*1=3400
3000+400*36=17400
 
        
             
        
        
        
Answer:
37.5
Step-by-step explanation:
5*15=75 then 75/2=37.5