erin owns stock in a high - tech firm. each share is currently valued at $3 per share, which is 40% less…

Explanation:

Step1: Let the purchase - price be $x$.

The current value is 40% less than the purchase - price. So the current value is $(1 - 0.40)x$.

Step2: Set up the equation.

We know the current value is $3$, so $(1 - 0.40)x=3$, which simplifies to $0.6x = 3$.

Step3: Solve for $x$.

Divide both sides of the equation by 0.6: $x=\frac{3}{0.6}=5$.

Answer:

$5$