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Directions: Solve what is unknown in the given problems.
1. Mario walks 300 m to North but then back-tracks to South for 120 m to see his friend. What is Mario's total displacement?
Given: df =______
di =______
Unknown: D =______
Formula:______
Substitution: _____
Answer:_______
2. A car travels 60 km within 2 hours. Find the speed of the car.
Given: d =_______
t =_______
Unknown: v=_____
Formula:______
Substitution:_______
Answer:_________​