If an office area has an average continuous lighting load of 875 watts. What is the energy cost of providing lighting to this area for an 8-hour day, based on a unit cost of 5 cents per kilowatt-hour?
$35.00
$0.35
$40.00
$.40
A waste line on a sloping lot must be run a horizontal distance of 85 feet. The vertical rise has been calculated to be 8.5 feet. What will be the percent grade of the waste line?
10%
1%
85%
.85%
