Answer:
I'm not sure which you mean, so I'll give the answer to both:

C is the answer because there is no variable for X which without it would make a horizontal line.
Answer:
No Soultion
Step-by-step explanation:
Exact Form: 21/25
Decimal Form: 0.84
Step-by-step explanation: Reduce the expression, if possible, by cancelling the common factors.
Answer:
1.= 27
2.=13.3...
Step-by-step explanation: