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.