Rihanna must put a five dollar deposit down to buy a necklace. If P where presents the full price of the necklace which expression tells how Brianna owes before tax after she has paid the deposit

The expression is P - 5

Step-by-step explanation:

Rihanna already made a deposit of $5 to buy the necklace (given)

Full price of necklace = P

Let m = how much Rihanna has left to pay

Full price of necklace = amount paid + amount left to pay

= 5 + m

So we equate the two full necklace prices

5 + m = P

m = P - 5

Therefore, the amount Rihanna owes before tax = P - 5