The amout that it costs per person to rent a limo for prom varies indirectly with the number of people riding in the limo. If the cost per person is %60 when 5 people are sharing, how much will it cost if they pile 20 people in the limo???
If the cost is $60.00 per person when 5 persons are sharing the cost, the total cost must be $60.00 x 5 = $300.00.
If the total cost is $300.00 and 20 persons are sharing the cost, the individual cost is $300.00 ÷ 20 = ...