Your electricity utility charges you each month a $15 fixed fee

Problem 2. (25 points) (Utility pricing schemes) Your electricity utility charges you each month a $15 xed fee (regardless of how much electricity you consume), $0.10 for the rst 200 kWh, and $0.15 thereafter. A. Write the expression for the monthly electricity bill (=tota1 amount that a customer must pay to the utility). B . Draw the monthly electricity bill in a graph with kWh per month on the x-axis and total monthly bill in $ on the y-axis. C. Draw the marginal price per kWh in a graph where the xaxis is kWh per month and the vertical axis is marginal price per kWh in $. D. Write the expression for the average price per kWh, where average price is monthly bill (see item A. above) divided by KWh consumed. E. Draw the average price in a graph where the x-axis represents kWh per month, and the y- axis is average price per kWh in $