Aball is thrown into the air the height, h in feet, of the ball can be modeled by the equation h=-16t^2+20t+6, where t is the time, in seconds, the ball is in the air. how long will it take the ball to reach its maximum height? what is the maximum height?

Which of the following points is collinear with (-2,1) and (0,3)

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Someone answer asap for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =