# A power company calculates a person’s monthly bill from the number of

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## Question:

A power company calculates a person’s monthly bill from the number of

kilowatt-hours (kWh), x, used.
The function b(x) = {
0.15%,
0.10 (20 – 400) + 60,
2 < 400 2 > 400
determines
the bill.
How much is the bill for a person who uses 600 kWh in a month?
O A. \$80
B. \$90
C. \$100
O D. \$110

Step-by-step explanation:

Given

The function is given for the bill as per the kilo-watt hours used

for 600 kWh in a month,  is

Substitute 600 for  in

Therefore, the bill for a person is

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