Answer: 11
Explanation:
Given: Mr. Doss pulled out 16 negative counters and 27 positive counters.
In integers we use negative sign "-" to represent the negative quantities.
So, we can represent 16 negative counters as -16.
Now, combined value of the counters = (-16) + 27
= 27-16
= 11
Hence, the combined value of the counters is 11.