Azookeeper is weighing some animals. the sea otter weighs 6/14 pound more than the piglet. the piglet weighs 5 times as much as the baby kangaroo. the baby kangaroo weighs 4 2/14 pounds. how much does the sea otter weigh?

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?