Identify a rounded to the nearest tenth. Please explain!!!

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

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?