1.3n (it can be simplified like any other equation just add like terms and remember there is a one before every variable)
The answer your looking for is B
Answer:
19
Step-by-step explanation:

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I am not familiar with Laplace transforms, so my explanation probably won't help, but given that for two Laplace transform

and

, then

Given that

and

So you have

From Table of Laplace Transform, you have

and hence

So you have

.
Hope this helps...