The selling of a bottle of cleaning spray with mentioned details is $2.7675.
The selling price = cost price + cost price × mark up price
Selling price of bottle = 2.05 + (2.05 × 35)/100
Performing multiplication on Right and Side of the equation
Selling price of bottle = 2.05 + 71.75/100
Performing division on Right and Side of the equation
Selling price of bottle = 2.05 + 0.7175
Performing addition on Right Hand Side
Selling price of bottle = 2.7675
So, the selling price of cleaning spray will be $2.7675.
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