megan buys 3 bracelets and 3 necklaces. Each bracelet cost $5. Megan pays the clerk $40 and gets $4 change. What is the cost,in dollars,of one necklace.



Answer :

One necklace costs 7 dollars
cost of both = 40 - 4 = $36

bracelets cost = 3 * $5 = $15
 

all (3) necklaces cost = $36 - $15 = $21
1 necklaces cost = $21/3 = $7