The intensity of light produced by a light source varies inversely as the square of the distance from the
source. If the intensity of light produced 5 feet from a
light source is 120 footcandles, find the distance with
intensity of light of 750 foot-candles. Find the distance with intensity of light of 750 foot candles

The mountain springs water company has two departments, purifying and bottling. the bottling department received 67,000 liters from the purifying department. during the period, the bottling department completed 65,000 liters, including 3,000 liters of work in process at the beginning of the period. the ending work in process was 5,000 liters. how many liters were started and completed during the period?