Your class is selling boxes of flower seeds as a fundraiser. The total profit p depends on the amount x that your class charges for each box of seeds. The equation p equals negative 0.5 x squared plus 36 x minus 141p=−0.5x 2+36x−141 models the profit of the fundraiser.​ What's the smallest​ amount in​ dollars that you can charge and make a profit of at least ​$471​?