Answer: $0.10 per lb per year
Step-by-step explanation:
Given: The price of bananas went from $0.20 per lb to $0.60 per lb in four years.
The change of price of bananas = [tex]0.60-0.20=0.40[/tex] per lb
Now, the rate of change of the price of bananas is given by :-
[tex]\frac{\text{Change in price}}{\text{number of years}}[/tex]
[tex]=\frac{0.40}{4}=0.10[/tex]
Hence, The rate of change of the price of bananas = $0.10 per lb per year
