Answer:
i belive a or c please tell me if i waz wroung
Answer:
A and B
Step-by-step explanation:
Parallel lines are lines which have the same slope. Perpendicular lines have negative reciprocal slopes.
For the options:
A. Both equations have 7/5 as the slope. They are parallel.
B. The slopes are 1 and -1. These are perpendicular.
C. The slopes are 9/2 and are parallel.
D. The slopes are 7/3 and -3/7. They are perpendicular.
The solution is A and B.
Answer:
B) 
Step-by-step explanation:

Hope this helps
Answer: 18/7
Step-by-step explanation: random.
Answer:
12.99km
Step-by-step explanation:
Using the formula
C=2(pi)(r)