Perform the following operations by applying the PMDAS or GMDAS rules 1. 4 + 6 - 7 + 9 = 2. 2 + 100 + 2 - 6 = 3. 8 x 9 + (48 + 6) = 4. 5 x 6 + 6 + 6 - 12 x 2 = 5. In solving the expression below, what would be the last step? 6 x 5 - 3 + 12 - 6 - 3 + 7 x 8 = 4
