An electric company calculates a person's monthly bill from the number of kilowatt-hours (kWh), x, used.
The function
b(c)
{
0.102,
X is greater than or equal to 200
0.15(x – 200) + 20, 2 > 200
determines the
bill.
How much is the bill for a person who uses 400 kWh in a month?

The bill is $30

Step-by-step explanation:

Given

See attachment

Required

Determine the bill when KWh = 400

From the given piece-wise function.

We make use of:

Because

Substitute 400 for x in b(x)

The bill is $30

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more

ιт ιѕ (9χ^5+10)(81χ^10-90χ^5+100)

step-by-step explanation:

нσρє ι ¢συℓ∂ нєℓρ уσυ συт тσ∂α