7+(-3)=4
Because positive and negative remains a negative or u keep the sign of the larger number the answer would be 4. Hope this helps
Answer:

Step-by-step explanation:
The deceleration experimented by the car is the product of kinetic coefficient of friction and gravitational constant:



The initial speed is computed from the following kinematic expression:





Answer:
42x^2
Step-by-step explanation:
