If a letter is chosen at random from the word arizona, what is the probability of choosing an a? a. 1/7 b. 2/7 c. 4/7 d. 5/7 select the best answer from the choices provided a b c d

The john nash mall used 17,4000 kilowatt hours in may, with a peak load of 92 kilowatts. the demand charge is $5.95 per kilowatt, and the energy charge is $0.08 per kilowatt hour. the fuel adjustment charge is $0.017 per kilowatt hour. what is the total electricity cost for may?