A jewelry company pays $100 for advertising and $5 per necklace they create. Each necklace

sells for $25. How many necklaces must the company sell in order for their expenses to equal
their revenue?
a) 125
b) 5
c) 150
d) 7

1 answer

Let x be the number of necklaces the company must sell.
The revenue from selling x necklaces is 25 * x.
The expenses for creating x necklaces is 5 * x + 100.
Setting the revenue equal to the expenses, we get 25 * x = 5 * x + 100.
Combining like terms, we get 20 * x = 100.
Dividing both sides by 20, we get x = 5.
Therefore, the company must sell 5 necklaces in order for their expenses to equal their revenue.
The answer is b) 5.