I’d really appreciate it if ANYONE would help me with this <3

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

What is always true when two whole numbers are subtracted?