Answer :

Let's evaluate the expression step-by-step:

1. Start with the expression: [tex]\(37 - 1 - 39.1 + (-40.2)\)[/tex].

2. First, subtract 1 from 37:
[tex]\[
37 - 1 = 36
\][/tex]

3. Now, subtract 39.1 from the result:
[tex]\[
36 - 39.1 = -3.1
\][/tex]

4. Finally, add [tex]\(-40.2\)[/tex] to the result:
[tex]\[
-3.1 + (-40.2) = -43.3
\][/tex]

So, the final answer is [tex]\(-43.3\)[/tex].