Answer: 82
Step-by-step explanation:
To find the answer to the expression 64 + (12•5) - 42, we need to follow the order of operations, also known as PEMDAS.
1. First, we solve the multiplication within the parentheses: 12•5 = 60.
The expression becomes 64 + 60 - 42.
2. Next, we perform the addition: 64 + 60 = 124.
The expression becomes 124 - 42.
3. Finally, we subtract 42 from 124: 124 - 42 = 82.
So, the answer to the expression 64 + (12•5) - 42 is 82.