The answer to this question is a and c only
Answer:
4 units
Step-by-step explanation:
volume of cube = 64 cubic units

It would be 0 because as you go along it doesn't go up but keeps moving. An undefined slope is up and down/vertical.
Answer:
A u B = {3,5,6,7,8,11,12}
Step-by-step explanation:
A = {3,6,7,11}
B = {3,5,7,8,12}
A u B = {3,5,6,7,8,11,12}