An electric company calculates a person's monthly bill from the number of kilowatt-hours (kWh), x, used.
The function b(x)
{
0.10.x,
x < 200
0.15(x – 200) +20, x > 200
determines the
bill.
How much is the bill for a person who uses 400 kWh in a month?
A. $30
Ο Ο
O o
B. $40
C. $50
D. $60
SUBMIT

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