complessivamente 4 ragni e 5 millepiedi? 2. A un convegno sono presenti 60 persone. Gli uomini sono 12 in meno delle donne. Quanti sono gli uomini? E quante le donne? 3. In una scuola superiore i ragazzi iscritti sono cinque volte le ragazze. Quanti sono

Round the number 3,245.6789 to the nearest thousandth.

Evaluate the absolute value of \( -8 \).

The distance between two towns is 90 km . A bus driver averages \( 30 \mathrm{~km} / \mathrm{h} \) in heavy traffic in one direction and \( 45 \mathrm{~km} / \mathrm{h} \) on the return trip. Calculate the total time taken and the average speed for the total journey. \( 5 \mathrm{hours}, 36 \mathrm{~km} / \mathrm{h} \)

You need to pack some cookies. \( 54 \% \) of the cookies are chocolate. You need tc pack a total of 350 cookies. How many of them are chocolate?

Write as a fraction: a \( 1 \div 7 \)