Final answer:
The explicit form of the function is f(n) = 5(3)^(n-1) and the exponential form of the function is f(n) = 3(5)^(n-1).
Step-by-step explanation:
The explicit form of the function f(n) representing the number of kilograms of fruit sold on the nth day is given by f(n) = 5(3)^(n-1).
The exponential form of the function f(n) representing the number of kilograms of fruit sold on the nth day is given by f(n) = 3(5)^(n-1).