-5$0,36+1,7$ + 12,5 - 8,5b

First, let's simplify the expression within the parentheses:

0,36 + 1,7 = 2,06

Now we substitute this back into the original expression:

-5$2,06$ + 12,5 - 8,5b

Next, we distribute the -5:

-10,3 + 12,5 - 8,5b

Now, combine like terms:

2,2 - 8,5b

Therefore, the simplified expression is 2,2 - 8,5b.