PLEASE HELP!
Knowing that you use 275 KWH from 7am-7pm and 265 KWH 7pm-7am, answer the question.

How much have you paid on the NightTImer plan?
NightTimer Plan: If more than 50% of usage is outside of 7pm-7am, then you have to pay the DayTimer rate for all power used between 7am-7pm. $0.06445/KWH

DayTimer: As long as most power used if from 7am-7pm, then you receive a 20% discount on power usage between 7pm-7am.
$0.06831/KWH

Question

PLEASE HELP!
Knowing that you use 275 KWH from 7am-7pm and 265 KWH 7pm-7am, answer the question. 

How much have you paid on the NightTImer plan?
NightTimer Plan: If more than 50% of usage is outside of 7pm-7am, then you have to pay the DayTimer rate for all power used between 7am-7pm.               $0.06445/KWH

DayTimer: As long as most power used if from 7am-7pm, then you receive a 20% discount on power usage between 7pm-7am.
$0.06831/KWH