Answer:
Inverse Laplace of
will be 
Step-by-step explanation:
We have to find the inverse Laplace transform of 
We know that of
is 
As in H(s) there is square of 
So i inverse Laplace there will be multiplication of t
So the inverse Laplace of
will be 

To find a linear question, we must have two points on the line and we must know the slope.
Let us choose two points at random:
(-6,12) and (-5,14)
Now let us find the slope of the linear line:

So the slope is 2.
Now let us set up the equation which now requires only one point and the slope
let us use the point (-6,12) and the slope of 2

So the linear line is y = 2x + 4.
Hope that helps!
Answer:
The answer is 1.833 radians