Answer:
I think that answer is C
Step-by-step explanation:
I am not 100% sure but it is worth a try
Don’t know unfortunately wish I could help
Answer:
2.0491 watt per meter square
Step-by-step explanation:
We are given the following in the question:
The intensity of light is given by:

where W is the wattage of the light bulb and r is the distance to the light bulb.
We have to evaluate the intensity of bulb with W = 100 watts and r = 2 meters.
Putting values, we get,

Thus, the intensity of light bulb is 2.0491 watt per meter square.
The total cost should be around 19.20