Those are positive numbers.
Those that are less than zero are called negative numbers.
Zero itself can be considered both, or neither.
Answer:

Step-by-step explanation:

Subtract 67 from both sides

Hope this is helpful
Answer:
F(t)
Step-by-step explanation:
We have given 
Now 
Here 
Now first find the Laplace inverse of G(S)
Using partial fraction


On comparing the coefficient
and
On putting the value of A and B

Taking inverse Laplace

Now in G(s) there is onether term 
So F(t)