How many different combinations of “on” and “off” are possible with 8 “light bulbs”?
Answer: The total number of combinations of "on" and "off" that are possible with 8 "light bulbs" is
![2^(8)=256](https://img.qammunity.org/2019/formulas/mathematics/high-school/gz2hgqh6545s5da8kdyiapmpm7jg1dam8f.png)
Therefore, 256 different combinations of “on” and “off” are possible with 8 “light bulbs”