Answer:
Step-by-step explanation:4 quarters
Step-by-step explanation:
Exponential function: f(x)=250(1.03)^x
Simplify both sides of the equation.
f(x)=250⋅1.03x
Evaluate the function.
250⋅1.03x
There is no such thing as a "kilowatt per hour". If that's actually what the question says, then it's a defective question, and you should put it away before it makes you any more confused.
A 120 watt light bulb uses exactly 0.12 kilowatt when it's turned on.
In one hour, it uses
(0.12 kilowatt) x (1 hour) = 0.12 kilowatt-hour of energy.
If energy costs $0.20 per kilowatt-hour, then the cost is
(0.12) x (0.20) = 2.4 cents. (0.024 dollar)
The answer is (making this long lol) B!
