Question

what is the cost to run a single 100 w light bulb for 30 days if the electric company charges $0.18 for every KW-hr?​

Answer 1

100 * 30*24 / 1000 * 0.18 = $____

Answer 2

$ 400 is that correct

Answer 3

3 * 24 * 0.18 does not equal 400

Answer 4

$129.60

Answer 5

Is that correct

Answer 6

Its 12.96