if your computer uses 2.5A at 120V, how much will it cost to use the computer for 4 hours a day, seven days a week for two weeks? assume that the cost of electricity is $0.09 for every kWh*h of energy.

i solved it like this way could you check of i got it right plzzz??

(C= E* Charge)
to find energy E= P*t
to find power P=V*I
P=120V*2.5A=300W
NOW BACK TO FIND ENERGY
E=300W*56h(cuz 4*14)=16800W*h=16.8kW*h
C=16.8kW*h * 0,09=$1.512

therefore, it will cost $1.512
is this right??