Avideo store sells about 150 dvds a week at a price of $20 each. the owner estimates that for each $1 decrease in price, about 25 more dvds will be sold each week. how can the owner maximize weekly revenue?

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?