Sophie tried to evaluate an expression. Here is her work:

9² ÷ 3².2 + 7.6
= 81 - 9.2 + 7.6 Step 1
= 9.2 + 7.6 Step 2
= 18 + 7.6 Step 3
= 25.7 Step 4
= 175 Step 5

Is Sophie's work correct?
O Yes, Sophie's work is correct
O No, Sophie made a mistake going from Step 1 to Step 2
O No, Sophie made a mistake going from Step 3 to Step 4.
O No, Sophie made a mistake going from Step 2 to Step 3