A store sells 9 key chains for \( \$ 44.91 \). Each key chain is the same price. How many of the key chains will the store need to sell to earn \( \$ 748.50 \) ?

To find out how many key chains the store needs to sell to earn $748.50, we first need to determine the price of one key chain. The total cost for 9 key chains is $44.91, so the price per key chain is: \[ \text{Price per key chain} = \frac{44.91}{9} \approx 4.99 \] Now, we can find out how many key chains need to be sold for $748.50 by dividing the target amount by the price per key chain: \[ \text{Number of key chains} = \frac{748.50}{4.99} \approx 149.9 \] Since you can't sell a fraction of a key chain, you would need to sell 150 key chains to meet or exceed the target amount.