Final answer:
To evaluate the expression 8 - 4 + 60, perform the subtraction to get 4 and then add 60 to get the final result of 64, corresponding to option B. 'already simplified'.
Step-by-step explanation:
The question involves a simple arithmetic operation. To evaluate 8 - 4 + 60, we perform the subtraction and addition in the order they appear, since they have the same precedence.
First, we subtract 4 from 8, which gives us 4, and then we add 60 to this result:
8 - 4 = 4
4 + 60 = 64
Therefore, the simplified result of the expression 8 - 4 + 60 is 64, which corresponds to option B. 'already simplified'.