Answer:
[tex]C(n)=0.40n - 0.25[/tex]
Step-by-step explanation:
We know that
Bananas cost $0.40 per pound.
The coupon offers a $0.25 discount of the total purchase.
Let's call [tex]n[/tex] pounds and [tex]C(n)[/tex] the cost of [tex]n[/tex] pounds.
The function that models this problem is
[tex]C(n)=0.40n - 0.25[/tex]
This expression states that each pound costs $0.40, and there's a discount of $0.25 in the final price.
Therefore, the function is
[tex]C(n)=0.40n - 0.25[/tex]