1 yard= 36 inches
10 yards* 36= 360 inches.
360 inches= 360 inches
So, 10 yards and 360 inches are equal.
Start by proving to them that the number 0.57 can be converted into a fraction . A whole number can't exactly be put in to a fraction. 0.57 can be converted to 14.25/25. This information means that 0.57 IS a rational number. Hope this convinced them!
The answer is B. 6m^3n^5. Hope I actually helped!
The only math term I can think of is geometry and it means when a solid is cut through parallel to the base.
EDIT: After further research since it was all I could think of. This is the only math term for what you are looking for.