Help me please I need this quick

Convert 16 yards to feet use the conversion rate 3 feet = 1 yard

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?

Factor 15x^3 - 5x^2 +6x-2 by grouping. what is the resulting expression