Help in work URGENT! A 2.6−kW toaster takes roughly 4 minutes to heat four slices of bread. Find the cost of operating the toaster once per day for 1 month (30 days). Assume energy costs 11 cents/kWh. so we can find work done by integrating..thts all i knoe..and then we multiply by 30 and by 11..seem rite..??..the thing is im not gettin the rite answer..