Answer:
Verified
Step-by-step explanation:
Use
,
and 
LHS=
=RHS
Answer:
Profit % = 39%
Step-by-step explanation:
Cost price of the article = 9
Price for repairing = 4
Therefore, Total cost of the article = 9 + 4 = 13
Selling price of the article = 18
Profit = 18 - 13 = 5
Hence,


Profit percent (to the nearest %) = 39%
A is the answer because the number 8 is a constant. and the multiplication sign is the operator.