Lucy has a jewelry business. To make a certain necklace, she spends $3.38 on materials and $5.57 on labor. She then sells the necklace for $15.99. Lucy’s profit on the necklace is equal to the sale price minus the cost of materials and labor.
(a) What fraction of the sale price of the necklace is profit? Give your answer as a proper fraction.
(b) What percent of the sale price of the necklace is profit? Show your work. Round your answer to the nearest whole percent.
(c) Lucy earned $223.86 selling necklaces at a craft fair. How many necklaces did Lucy sell? How much profit did she earn?

Question

Lucy has a jewelry business. To make a certain necklace, she spends $3.38 on materials and $5.57 on labor. She then sells the necklace for $15.99. Lucy’s profit on the necklace is equal to the sale price minus the cost of materials and labor.
(a)	What fraction of the sale price of the necklace is profit? Give your answer as a proper fraction.
(b)	What percent of the sale price of the necklace is profit? Show your work. Round your answer to the nearest whole percent.
(c)	Lucy earned $223.86 selling necklaces at a craft fair. How many necklaces did Lucy sell? How much profit did she earn?