Answer:
Step-by-step explanation:
90/15=6/z
6=6z
z=1
B would be correct the -3 x and 3 x cancel out
2/3,2/6,2/8
23 is the greatest because it has larger pieces
2/6 is the second greatest because it is a little smaller than thirds
2/8 is the least because it has the smallest pieces
Answer: 
Step-by-step explanation:
If you meant to solve for "z", then refer to the attachment below.
Answer:I will just post them
Step-by-step explanation: