Answer:
30 X .8=24 30-24=6 bill got 6 questions wrong
No its not because its a repeating decimal for a number to be a irrational number it has to be non terminating or non repeating
A triangle is rotated around N to give the primed version.
A. Same shape and size -- TRUE. Rotation doesn't change shape or size.
B. Corresponding points are equidistant to N. That's TRUE, each point is rotated around N to get its corresponding point, which will be the same distance from N.
C. DN=D'N. TRUE, just an example of corresponding points.
D. Corresponding side lengths unequal, FALSE. Rotation doesn't change lengths.
If the number is 5 or greater you round it up
if its four or less you round down