To calculate the amount of Donna's electricity bill for March, we need to follow these steps:
1. Calculate the difference in the electricity meter readings:
End of March reading - Beginning of March reading
73,196.2 kwh - 71,236.4 kwh = 1,959.8 kwh
2. Multiply the difference by the rate per kwh:
1,959.8 kwh * $0.074/kwh = $144.85
So the correct amount for Donna's electricity bill for March is $144.85.