It costs a manufacturer $7.95 to produce sunglasses that sell for $21.99. How many pairs of sunglasses must the manufacturer sell to make a profit of $10,530?

1 pairs of sunglasses

2 answers

It's already been answwered.

http://www.jiskha.com/display.cgi?id=1410393314
If you scroll down the page to first question highlighted, you will see it