So basically when you are adding or subtracting fractions the denominators the number on the bottom of the fraction 12 in this case and 8 as well the two denominators sharing the least common multiple so what is the lowest multiple of 12 and 8 so count off 12: 12, 24, 36... 8: 8, 16 , 24 does that help?
The answer is C. Compass.
Compass isn't used in the geometric constructions.
The population 10 years later will have increased by 3,040, making the population 18,240.
Hope this helps.<span />
Simple math. 350 - 90 = 260. So Hector needs to drive 260 km more to reach his cousin
