Tính:

To solve this expression, we can follow the order of operations (PEMDAS/BODMAS):

First, let's simplify the expression inside the parentheses:
[-1,25]x[-0,8] = 1,25 x 0,8 = 1

Now, let's substitute this value back into the original expression:
-0,15 - 1 - 0,85 = -0,15 - 1 - 0,85 = -2

Therefore, the value of the expression -0,15-[-1,25]x[-0,8]-0,85 is -2.