SAT Question 3d73a58b: Percentages answer and explanation with Desmos solution

06$.I{t}^{\prime }sgiventhattheretailpriceis＄290\%$ of the wholesale price of \$$7.00. Thus, the retail price is $$7.00\left(\frac{290}{100}\right)$, which is equivalent to $$7.00\left(2.9\right)$, or $$20.30$. It's also given that the discounted price is $80\%$ off the retail price. Thus, the discounted price is $$20.30\left(1-\frac{80}{100}\right)$, which is equivalent to $$20.30\left(0.20\right)$, or $$4.06$. Note that 4.06 and 4.060 are examples of ways to enter a correct answer.