Answer:
The original selling price would be $ 18.99
Step-by-step explanation:
Given formula is,
M = S - N
Where,
M = markdown,
S = original selling price,
N = reduced price
Here,
M = $ 11.45, N = $ 7.54,
By substituting the values,
11.45 = S - 7.54
⇒ S = 11.45 + 7.54 = 18.99
Hence, the original selling price of the house is $ 18.99