The price of bananas went from $0.20 per lb to $0.60 per lb in four years. Find the rate of change of the price of bananas. A) $0.05 per pound per year B) $0.10 per pound per year C) $0.15 per pound per year D) $0.25 per pound per year
It would definitely be B. $0.10 because it's 20 cents per pound one year if you add ten cents for four years it's adding up to 60 cents the fourth year.