The total charge on your electricity bill is determined by the amount of electricity that has been consumed. However, many municipalities have on-peak and off-peak rates in order to encourage consumers to use less electricity during business hours, when demand on the grid is higher. Consider a region where on-peak rates are $0.25/kWh and off- peak rates are $0.10/kWh. The charge for being connected to the grid is a flat fee of $5.00. a. Determine an equation that shows your cost (C) as a function of your energy consumption (E). You can use En and E, for the high and low rates. b. If a household uses twice as much energy during off-peak hours compared to on-peak hours and their monthly bill is $145, determine the total amount of electricity consumed (in kWh).