Atrain travels 89 miles per hour after the 148 people on the train rode a total of 6 hours how many miles had the train traveled

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.

What is the number 321,000,000 in scientific notation? also what is the number? ?