A jewelry store makes $5 profit for each $1 they spend on jewelry. a jewelry store owner made a profit of $95 on a necklace. What was the original cost of the necklace?

$19

Step-by-step explanation:

Given: for every $5 they recieve they pay 1$ meaning that they they earn $4 total- 5-1=4

5 goes into 95, 19 times so use a ratio:

5/1     95/19  

(I mulitiplied 1 by 19)

meaning that 19 was the original cost

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm