Given the function:

Where F represents Anumeha's fees (in dollars) for working t hours. The initial fee can be calculated for t = 0:

So the constant fee is $6. Now, we need to calculate how much does she charges each hour. We can calculate the values at t = 1, t = 2, and t = 3:

As we can see, there is a constant increment of $12 for each hour. Then, Anumeha charges $12 for each hour of work.