Please help me with these sorry for how many there are

Answer: 19.2, 1.7, 15.93, 0.0512Step-by-step explanation:We can multiply these straight across but the trick with decimals is that your answer needs to have the same decimal place distance as what you are multiplying. In the first question, we go one decimal place. In the second, we go two decimal places. In the fourth, we go four decimal places.