What is the total cost of using the following at 12¢ /kWh?
a. 200 W fan for 4 h
b. Six 60 W bulbs for 6 h
c. 1200 W dryer for h
d. 175 W desktop computer for 3.5 h
e. 250 W color television set for 4 h 20 min
f. 30 W satellite dish for 8 h
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