Bài 2. Chứng minh rằng với mọi số tự nhiên a, b ta có: a) a ≤ a + b;
b) Nếu b ≠ 0 thì a ≤ ab;

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?