Hanna wants to calculate the cost of her electric bill. she is on a standard use plan that has a graduated fee schedule. standard use plan 8.5 cents/kwh for the first 400 kwh 12 cents/kwh for the next 400 kwh 14.5 cents/kwh for anything over 800 kwh how much will her bill be if she uses 1,465 kwh? round to the nearest dollar. a. $82 b. $96 c. $178 d. $144

c. $178.

Step-by-step explanation:

We have been given that Hanna is on a standard use plan that has a graduated fee schedule. Standard Use Plan 8.5 cents/kWh for the first 400 kWh. 12 cents/kWh for the next 400 kWh and 14.5 cents/kWh for anything over 800 kWh.

The cost of first 400 kWh will be:  

The cost of the next 400 kWh will be:

The remaining units of electricity will be .

The cost of remaining 665 kWh will be:

Therefore, the total cost of Hanna's electricity bill will be $178 and option c is the correct choice.

c. (0.6,-1.4)

step-by-step explanation:

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