(9-7,94)*2,5-1,55=

To solve the expression \((9 - 7.94) \times 2.5 - 1.55\), follow the order of operations:

1. Calculate \(9 - 7.94\): \[ 9 - 7.94 = 1.06 \]

2. Multiply the result by \(2.5\): \[ 1.06 \times 2.5 = 2.65 \]

3. Subtract \(1.55\) from the result: \[ 2.65 - 1.55 = 1.10 \]

Thus, the final answer is: \[ \boxed{1.10} \]