Answer:
She need to walk 31/75 miles to school.
Step-by-step explanation:
It is given that,
Sofia has walk  miles to school. She has already walk
 miles to school. She has already walk  of a mile.
 of a mile.
We need to find how much farther does she need to walk.
Total distance =   
 
Let she has to walk x distance to school.

Hence, she need to walk 31/75 miles to school.
 
        
             
        
        
        
Answer:
100
Step-by-step explanation:
 
        
             
        
        
        
Answer:
40
Step-by-step explanation:
3x^2 + 8x = 2
3x^2 + 8x - 2 = 0
D = b^2+4ac
D = 8^2+4(3)(-2)
D = 64+(-24)
D = 64-24
D = 40