Each number has a factor of 2, so divide each number by 2, giving you 2:11:15. You can't divide by anything else because 2, 11, and 15 have no factors in common.
The answer is 4 units. The distance between the two points of B and C is equals 6-4=2, because the y is the same. According to the question, the BC is equals 0.5*B'C'. So the length of B'C' is 2/0.5=4 units.
Yes, she did, because the place of the digit (5) is in the hundredth place, indicating that she used 100 beads.
6000/40 = 150 fans per mile
