Solve (7 pts. each.) 23. The reading on Kelly Scott's electric meter on May 30 was 56,458 kwhi. On June 30 it was 57 3. kwhr. Find the amount of her bill for the past month if the cost of electricity is 6.5 per kwhr, 24. The Wilsons used 6,000 gallons of water for the month of January. Using the rates below what would their total charge be for the month? Water and Sewage Rates Water Rates 0 - 3,000 gallons $7.90 3,001- 10,000 $ .96 per 1,000 gallons Sewage Rates Monthly charge $13.65 1 - 1,000 gallons $ 5.31