18. There are 56 fish in a tank, and each fish is yellow, blue, or black. There are six more yellow fish than blue fish, and four fewer black

fish than blue fish. How many yellow fish are in the tank?

A. 18 yellow fish

B. 14 yellow fish

C. 24 yellow fish

lab

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?