To determine the cost if you subscribe to the NightTimer plan, let's follow these steps:
1. Calculate Total Usage:
- For daytime (7 a.m. - 7 p.m.): 275 KWH
- For nighttime (7 p.m. - 7 a.m.): 265 KWH
- Total usage = [tex]\( 275 \text{ KWH} + 265 \text{ KWH} = 540 \text{ KWH} \)[/tex]
2. Identify the Rate for NightTimer Plan:
- The rate for the NightTimer plan is \[tex]$0.06445 per KWH.
3. Calculate Total Cost:
- Multiply the total usage (540 KWH) by the NightTimer rate (\$[/tex]0.06445 per KWH).
- Cost = [tex]\( 540 \text{ KWH} \times 0.06445 \text{ USD/KWH} \)[/tex]
4. Round the Result to Two Decimal Places:
- The computed cost is \[tex]$34.80 when rounded to two decimal places.
Therefore, as a NightTimer plan subscriber, you would pay \$[/tex]34.80.
The correct answer is \$34.80.
