293
2930
45 + 2930 = 2,975
I'm guessing you add the two numbers together to get the total amount of copies printed (359+2571), the sum total being: 2930. The percentage of copies printed by Al would be (359/2930)*100 = 12.25%. Since Steve printed the rest, his percentage would be 100-12.25=87.75%, or (2571/2930)*100.
2930 meters
20% of 1465 = 293 = 20% * 1465 = 20%/100% * 1465 = 2930/10 or 293
100
117 rounded to the nearest 100 = 100
100
100
100
853 rounded to the nearest 100: 900. 10853 rounded to the nearest 100: 10900.
100