Power[p] = IV → 2 * 440 = 880Watt
Energy = p * t = 880 * 48hrs
= 42240 or 42.24kwh
But 1 kwh cost \0.40∴42.24 kwh costs 42.24×0.40=16.896 or 0.40\therefore 42.24\,\mathrm{kwh}\text{ costs }42.24 \times 0.40 = 16.896 \text{ or } \\0.40∴42.24kwh costs 42.24×0.40=16.896 or 16.90
