time period. Over what range (in kwh) did the usage vary?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Solve it correctly please. I 

In North Carolina, Duke Energy charges
$42.41 plus $0.092897 for each additional
kilowatt hour (kwh) used during the months
from July through October for usage in
excess of 350 kwh. Suppose one
homeowner's electric bill ranged from a low
of $88.86 to a high of $137.16 during this
time period. Over what range (in kwh) did
the usage vary?
Hint: you are being asked find the kwh for a
bill of $88.86 and the kwh for a bill of
$137.16. Please show all work!
Transcribed Image Text:In North Carolina, Duke Energy charges $42.41 plus $0.092897 for each additional kilowatt hour (kwh) used during the months from July through October for usage in excess of 350 kwh. Suppose one homeowner's electric bill ranged from a low of $88.86 to a high of $137.16 during this time period. Over what range (in kwh) did the usage vary? Hint: you are being asked find the kwh for a bill of $88.86 and the kwh for a bill of $137.16. Please show all work!
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