6. Leanne works at a shoe store and earns $200 per week plus $20 for each pair of shoes that she sells. Write and solve an inequality to find how many pairs of shoes she must sell to earn at least $800 per week.

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?