1. A customer bought 0.85 pounds of cheese at $5.90 per pound. How much change should the customer get back from a a $10 dollar bill?

2 Mike pays $0.153 per kilowatt hour for the electricity in his TV repair shop. One month, Mike used 883 kilowatt-hours of electricity and paid $7.82 for the monthly fee and $8.11 in tax. What was his total bill that month?

3 On Carmen's last phone bill, she had 23 minutes at $0.129 per minute and 64 minutes at $0.14 per minute. She also had to pay a monthly service charge of $10.75. What was her total phone bill?