need help with physics and electrical current?

[bballjon13]

Assume electrical energy costs $0.080 per kw-h, and that appliances have a potential difference across them of 125 V. Calculate the cost of running a 65.0 W stereo for 24 hrs. (In units of dollars.) Then, Calculate the cost of running an electric oven that draws 22.0 A of current for 24 hrs. (Also in dollars)

After that, calculate the cost of running a television with a resistance of 30.0 ? for 24 hrs. (Answer in units of dollars)

Thanks so much for the help!