Which statement is true about the Internet connection cost, math homework help

Which statement is true about the Internet connection cost, math homework help

The function f(t) represents the cost to connect to the Internet at an online gaming store. It is a function of t, the time in minutes spent on the Internet.

f(t) =

Which statement is true about the Internet connection cost?

It costs $5 per hour to connect to the Internet at the gaming store.

The first half hour is free, and then it costs $5 per minute to connect to the Internet.

It costs $10 for each 90 minutes spent connected to the Internet at the gaming store.

Any amount of time over an hour and a half would cost $10.