Answer:
3,600
Explanation:
In the question, there is energy consumption and a rate but not in an easy way.
In order to find out how much watt-hours the light bulb consumes per day, the easiest way is to multiply by the hour to find out how much it uses in a day.
In 4 days and 6 hours there are 102 hours.
![4 * 24 = 96](https://img.qammunity.org/2021/formulas/mathematics/college/byzx5r5gr63eqm32vng0zq4n7mbksoh5ka.png)
The hours for 4 days...
![96 + 6 = 102](https://img.qammunity.org/2021/formulas/mathematics/college/3k92bw8c9xwh8dku0fwxctcdlnd4f8ogsk.png)
4 days plus 6 hours. The total time...
Now make the watt-hours usage an hourly rate...
![15300 + 102 = 150](https://img.qammunity.org/2021/formulas/mathematics/college/um4kesfcp9u8ggddh2gg97v9cownmvvjyh.png)
150 watts/hour...
Take the hourly rate and multiply it by 24 (number of hours in a day) to find out how many watt-hours the lightbulb uses in a day...
![150 * 24 = 3600](https://img.qammunity.org/2021/formulas/mathematics/college/59jmue2axf27qhbci3mj3bwsgvcz2si2nv.png)