I'll presume the slash is the fraction bar and the questioner is asking about

That always equals 4 except when 
So the restriction is
Answer: a ≠ -3
Answer:

<h3>Answer B is correct</h3>
Price, when purchased online: 1.30($160)
Price, when purchased at superstore: 1.40($160)
Difference in prices: 1.40($160) - 1.30($160) = 0.10($160) = $16
A higher markup brings a higher retail price.
Answer:
it is Tuesday and can you answer my question in my profile PLEASE