There are 30000 lioms in africa. the number of lions in africa decreases exponentially by 2% each year. Find the number of lion in africa after 6 years

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?