Answer:
all reals
Step-by-step explanation:
Simplified, you have ...
20 -3n = 20 -3n
The equation is a tautology, true for all values of n.
The solution set is "all reals."
A. Perpendicular!
Because they cross with a 90 degree angle :]
I had to do this and it’s fake, my whole class got it wrong even though we all put the right answer so ya
Answer:
1
or

Step-by-step explanation:
Answer:

Step-by-step explanation:
