Answer:
20
Step-by-step explanation:
When you multiply an even number of negatives together, the outcome is always a positive number.
In this case, let's first figure out (-5) * (-1). Since there are two negative numbers, we know that the result will be positive. Then: 5 * 1 = 5
Now, we just multiply 5 by 4: 5 * 4 = 20
The answer is 20.
Hope this helps!
