To determine the correct inequality representing this problem, we need to define the variables first:
- Let \( b \) be the number of candy bars sold.
- The revenue from selling \( b \) candy bars is \( 2b \) dollars (since each bar sells for $2).
- The initial cost of purchasing the bars is $400.
To break even and to achieve their goal of making at least $1,000 profit, we can set up the inequality based on the profit formula:
\[ \text{Profit} = \text{Revenue} - \text{Cost} \] \[ \text{Profit} = 2b - 400 \]
To find the minimum profit needed:
\[ 2b - 400 \geq 1000 \]
This gives us the inequality that we are solving:
\[ 2b \geq 1400 \]
Now, we can simplify this to find the minimum number of candy bars they need to sell:
\[ b \geq 700 \]
Next, we check if selling 725 bars is enough:
Calculating the revenue from selling 725 bars:
\[ \text{Revenue} = 2 \times 725 = 1450 \] \[ \text{Profit} = 1450 - 400 = 1050 \]
Since 1050 is greater than 1000, selling 725 bars will indeed cover the cost and meet the profit requirement.
Thus, the correct response is:
2b - 400 ≥ 1000, and yes, it is a viable option.