Clarence sells yearly subscriptions to a particular magazine. He sells at least 10 and no more than 25 subscriptions each week. The function f(t)=48t represents the amount of money earned for selling t subscriptions each week. What is the practical range of the function? all whole numbers from 480 to 1200, inclusive all real numbers all whole numbers from 10 to 25, inclusive all multiples of 48 between 480 and 1200, inclusive