On a boat tour, there are half as many children as there are adults. There are 30 people on the tour. How many children are there? Hint use a tape diagram!! Show your work.

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?