Answer:
2hrs 40 minutes
Step-by-step explanation:
The formula for distance is expressed as:

#The time taken to run:

#The time taken to walk:

#Since the distances are the same:

Hence, Dana spends 2hrs 40 minutes walking back
2,-2 seems to be the answer
Answer:
if u substract the equations u get 4x = 1, therefore x = 1/4
Step-by-step explanation:
(8x + y) - (4x + y) = 5 - 4
4x = 1
x = 1/4