Round 54 to the nearest ten.

66. When Mahlet counts oranges in a basket by 5 's, there are 3 oranges loft over when she counts them by 3 's, there are two left over. What is the least number of oranges in the basket?

4. Una fábrica de dulces produce 1746 paletas en un día. ¿Qué cantidad representan \( \frac{4}{6} \) de la producción total de paletas en un día?

Is the number 14 a prime number? Explain why or why not.

If \( 3^2 \) is calculated, what is the result?

2. \( 3 \times 3,142= \)