Un avión se encuentra a 11.226 metros de altura y para no experimentar nurbulencias desciende 2.256 metros. ¿A que altura se encuentra finalmente el avion?

Round 54 to the nearest ten.

Expand 213 five using place values

Round the number 3,245.6789 to the nearest thousandth.

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 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?