What is 1.771 rounded to the nearest hundredth of a pound

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Hi, can anyone show me how to do this problem? 100 points for this. in advance

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer