The cost of refreshments (in dollars) is a function, h, of the number of people served, n. If h(n)=100/9n, find the number of dollars it would cost for refreshments for 27 people.
For this question you want to find h(27), so you would substitute 27 for n, giving you:
H(27)=100/9(27)
H(27)=0.412 dollars