How to Calculate Power and Energy Usage for a TV and Clothes Dryer

[ElegantSir]

Homework Statement

"Complete the weekly energy cost and power rating of a TV and clothes dryer by completing the table that follows."

The table is presented in the thumbnail

Homework Equations

work = force / distance
power = work / time

Y = E * c
-Y is the yearly running cost
-E in the EnerGuide energy rating per year
-c is the cost of electricity per kW/h

The Attempt at a Solution

Ive done the first 4 columns of the chart and I know how to solve the last one (By using the p = w * t equation) Problem is...I have no idea how to calculate the "estimate of hours of use per week." I've been multiplying and dividing the number of hours per week by about anything I can think of but I am not coming up with the correct answer. If anyone can point me in a direction as to what I need to be calculating the help would be greatly appreciated!

P.S This table was the answer given to us for the example question. The last 2 columns are unfinished on my personal table

 

[Matejxx1]

Try getting the estimate of hours per week by using the
E per week and the power calculated in the last row

 

[ElegantSir]

I can't do that because I don't know the power yet. Like I stated The last 2 columns on my chart are empty and i can't calculate power without the time first.