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.
h(n) = (100/90 * n
h(27) = (100/9) * 27 = $300.
h(27) = (100/9) * 27 = $300.