The first operation is
First, we have to get rid of the parenthesis, to do that, we just multiply signs to get
Now, we sum these numbers since they have the same signs
Therefore, the answer to (a) is -56.
The second operation is
We get rid of the parenthesis
Then, we subtract these numbers since they have different signs
Therefore, the answer to (b) is 10.
The third operation is
We just subtract these numbers since they have different signs
Therefore, the answer to (c) is 3.
The fourth operation is
We just subtract
Therefore, the answer to (d) is -5.
The last operation is
We just sum
Therefore, the answer to (e) is 96.